it certanly isn't groundbreaking. The basic principle has been in use for thousands of years in catapults. It's groundbreaking in the sense that it doesn't go to the common place when we think about "robots", it's a barely eletrocnic catapult
I love engineering like this- simple structures deployed in novel ways, designed rigorously and exploiting particular materials to achieve a breakthrough result.
I imagine the spring y part stays on the ground and are 100feet tall ish with a payload for space or meet up with a few blimps at 50,000-70,000 feet land and then do it again to reach space
When I made a water bottle rocket recently, I was surprised that they advised that a weight be added to the top of the rocket. It certainly made a positive difference. So I'm interested to see the same principle at work here.
Yeah rockets are weird in that you need to add weight to the nose otherwise they are unstable. IIRC it's because the center of mass is the center or rotation and by moving it higher it creates a higher moment of inertia and the air resistance can actually stabilize the rocket. Similar to how it's a lot easier to balance a pole with weight on the end then without since it takes more time to rotate and you have more time to correct.
They do, all the motors and electronics are located at the top. The idea is simple, if your center of mass is in front of your center of lift, your rocket will flip around, that's why a dart has most of its mass at the front, and all its wings at the rear. It's something you learn when playing kerbal space program, if your rear is too heavy your rocket will flip at the slightest push of air.
for a rocket the center of gravity (which is the point the rocket rotates about) has to be in front of the center of area (which is the central point that the wind pushes) in order to be stable.
Have they looked at efficiency loss from jumping on a compressible surface, like loose sand? I would think that would be a limiting factor in an environment like the moon, where there is a large quantity of fine particles on the surface.
11:40 maybe ? Not all of the moon is made of regolith(the granules are a bit bigger than sand ) ,i think the seas are made of mafic rock which is incompressible
I was thinking of this the other way around, what if it lands on a soft spot and digs itselfs in/lands under a rock or something like this. Would it be able to get itself unstuck?
Such a simple mechanism yet it broke the highest jump record.. Scientific discoveries and corresponding engineered devices are truly amazing aspects of human exploration .. like two sides of the same coin..
Jesus Christ died for our sins, rose from the dead, and gives salvation to everyone who has faith in him. True faith in Jesus will have you bear good fruit and *drastically* change for the better! Those led by the Holy Spirit do not abide in wickedness. God is three in one; the Father, the Son, and the Holy Spirit! Bless him! As I am led by the Holy Spirit, nothing I state is a lie, but the truth of God. Anyone who tells you differently is misinformed or a liar. They do not know God, nor led by him. Anyone who *claims* to be a Christian and is against what I am doing, for any reason; the Holy Spirit does not dwell within them. They know not God, read his word, and their religion is in vain. Do not hear them, they will mislead you, the lost cannot guide the lost.
When you trust in God and cast your cares (worries, anxiety, depression, suicidal thoughts) upon him, they will be NO MORE! Know that there is power in the name Jesus Christ! His name casts out demons and heals! The world is wicked, evil, and of the devil. I too, was a wicked sinner of the world before I opened my heart to God. I am living proof of God's work and fruitfulness! He is an active God who hears the prayers of his! God's children are set apart (holy) and righteous. The devil is a liar that comes to steal, to kill, and to destroy; that includes your relationship with God.
If we got enough likes together would Derek commission the 10x larger version? Deployable glide surfaces + parachute + camera package is my vote for the payload.
Well the reason it only exists as a rendered model is it will take years of materials science work to solve. The amount carbon fiber can flex or rubber can stretch doesn't scale the same way mass does in a mathematical model. Part of the reason the prototype works has a lot to do with 'the physics of the small' vs 'the physics of the large'
I've taken suspension springs out of cars and every time I would treat it as if it was a loaded gun. The full scale version of this jumper is absolutely terrifying. I wouldn't want to be anywhere near that thing when it was fully compressed.
@@TAllenYT The key is that they are trapped while driving. When removing them for repair work, a lot of cars require that the springs be removed under tension. That typically means a careful extraction as if whatever holding the springs in tension slips or fails, the spring instantly releases the bound energy which can cause quite a bit of danger.
8:00 the idea of the small motor working over time to store energy reminds me of how the mantis shrimp punches so hard. It uses its muscles to slowly bring its hands in and then latches them and when the latch releases... POW!
I'm not sure why, but such a small and simple thing made this one of my more favorite videos of yours. Especially once you pointed out how invaluable this would be on other planets with little to no atmosphere. I wonder if something like this could also implement a passive propeller that would slow its decent 🤔
It wouldn't be difficult to add something like retractable propellers, deploying automatically during descent, which potentially could allow the robot to start winding the spring even before it lands, thus reducing time between hops
Propeller and parachute would both be useless in 0 atmosphere. On someplace like mars where an atmosphere is thinner they would be work but very ineffective. Someplace like Venus where the atmosphere is thick the propeller would have greater efficiency than the jumping because of increased aero resistance
@@prapanthebachelorette6803 It would need to jump a lot further. The current estimate is that it can jump 500 meters, and it would need to be able to jump a total of almost 11 million meters. This could be optimized by changing the trajectory angle to maximize the distance, and the distance increases exponentially based on a slight increase of the initial force. 500 m vs 11M m may seem like a big leap, but it isn't as big as someone may initially think it is.
The NBA should allow the athletes to have nuclear missiles in their shoes so they can dunk from greater heights. It's a great idea because no one has thought of it before.
Yes, it was. Five cent metallic jumpers with a screw or push button middle top when I was 3-5 years of age. Would jump like almost a meter, same [seems later were used in a self closing ash tray mech in bars and not sold as toys anymore. That was in the past century...
step 1: make huge jumper step 2: stack smaller jumper on top step 3: repeat until size is sufficiently small step 4: launch them successively step 5: achieve orbit
@@horatiotodd8723 So, whats the math showing it wont work? If everything is scaled up 10x, shouldn't it still work? That means using proportionally stronger bands. Proportionally stronger battens. Just 10x.
I would love to see this combined with that company creating glider drones to deliver to hospitals. They use a giant slingshot currently to get in the air, but that means they can only launch from a dedicated setup spot
I have never taken the time to thank you and your team about posting videos in spanish, I really appreciate the fact you are doing this, since here in my country no public education entity has ever taken the time to teach us as your chanel does. I know this is a no big recognition and makes no justice enough of your work and your prestigious person, but I just happen to notice that no other science youtuber from a 1st world country has taken the effort, time or resources, to get their content being translated expecting nothing in exchange. I feel really exited about the things I learn in everyone of your videos, I wish I have had a better science foundation to understand in full about the whole content of the topics but, as you might probably certainly assumed science education is really neglected in third world countries, now that Im a grown up person I realize how important science education is, and I will definitely encourage my kids to learn about it and with the help of your videos that will going to be easier for them (at least until they learn english since there are so much knowledge we still need to get but the majority is still available just in english), greetings. A fan from C.A.
I’m obviously not Derek, but I hope he sees this! What a wonderful comment to read. I have many problems with the public education system here in America, but this was humbling, and makes me grateful for what I did get. May you continue to explore your curiosity as you access the knowledge denied to you. 🙏🏻 We all deserve an education, I hope your family gets to experience the joy of discovery that you have ❤️ Sending much love to South America from up here in North America!
@@bod9001a done, I have just suscribed me to his channel you are totally right, his content is in spanish too an it seems really interesting to watch, greetings up to where you are located 🙂
I wish there was an Urdu version. People from Pakistan, India, Nepal, and Bangladesh could watch that version. It would not only increase the number of subscribers for Derek but also spark interest in kids in those countries. It would be amazing. I hope he sees this.
The old British sci fi shows UFO and Captain Scarlet both feature "Moon Hoppers" as a form of lunar transport. I remember thinking it was absurd at the time, but maybe they weren't so crazy.
Well only if you include fictional technology that enables you to survive the acceleration, in which case there should be way easier methods of transportation
@@oyuyuy To make the jump endurable, you would have to reduce the Gs. You can, to some extent, if there is some axial space in the craft. Human body would receive more damage enduring 30 g for 1 second than 15 g for 2 seconds, even less 10 g for 3 seconds (any astronaut can). And the three situations would produce the same overall acceleration. All you have to do is to smooth it up, for example plunging the passenger into a non newtonian fluid gel.
Jesus Christ died for our sins, rose from the dead, and gives salvation to everyone who has faith in him. True faith in Jesus will have you bear good fruit and *drastically* change for the better! Those led by the Holy Spirit do not abide in wickedness. God is three in one; the Father, the Son, and the Holy Spirit! Bless him! As I am led by the Holy Spirit, nothing I state is a lie, but the truth of God. Anyone who tells you differently is misinformed or a liar. They do not know God, nor led by him. Anyone who *claims* to be a Christian and is against what I am doing, for any reason; the Holy Spirit does not dwell within them. They know not God, read his word, and their religion is in vain. Do not hear them, they will mislead you, the lost cannot guide the lost.
When you trust in God and cast your cares (worries, anxiety, depression, suicidal thoughts) upon him, they will be NO MORE! Know that there is power in the name Jesus Christ! His name casts out demons and heals! The world is wicked, evil, and of the devil. I too, was a wicked sinner of the world before I opened my heart to God. I am living proof of God's work and fruitfulness! He is an active God who hears the prayers of his! God's children are set apart (holy) and righteous. The devil is a liar that comes to steal, to kill, and to destroy; that includes your relationship with God.
@@Call_Upon_YAH satan saves. join him and give up your silly ways of proselytizing on science videos, where literally nobody is looking for this content.
I'd appreciate a graph showing additional weight at the top vs height of jump. Obviously at some point the additional weight will make jumps decrease height but at what inflection point and how quickly does height fall off past that point.
The relationship is between the mass of the spring and the mass of the head. A "perfect" collision will have both of equal mass. Imagine 2 billiard balls of equal mass vs different masses.
Yeah.....NO. You must remember: Top- weight is a steering-mechanism. Of course, this applies only to NASA's balloons which are weighted ON THE TOP as thrust propels. Basic laws do not apply.
@@kevinliang9502 the jump is not an elastic collision between the spring and the body, so mechanical impedance would not apply here. It is rather an elastic collision with the Earth. Increasing the head mass is beneficial because of the mechanical advantage: the spring works as a lever, and the head is attached to the farthest point of it. It is more beneficial to accelerate the farthest mass up than waste the energy accelerating spring masses inwards and canceling each other.
@@onebronx so what would be the conclusion here ? As light springs as posible and as high of a (head-)mass ? This seems counter intuitiv shouldnt the mass at some point effect the mechanism negatively ?
This is very similar to the "flywheel bots" in Battle Bots. By spinning up the flywheel over time, they store a crap load of energy and release it all at once on its victims. That's why they always did so well.
I love the elegant and efficient design! Once it decompresses, it's shape is near perfect for flight - CoM in the front, drag in the back. Really, really well thought out.
A very very impressive robot that release an absolutly crazy amount of energy at once is Blip, a fighting robot that did great in BattleBots season 6. Its design uses a fabric/fiber being twisted by flywheel, constantly sped up by a motor to create a crazy contracting force when it's needed. It really packs a punch. The team has a video about the engineering of making it.
We designed a similar scheme which was only partially constructed before the team folded. Ours used latex rubber bands connected to steel cable to act on an axe. It was frightening! Some of the innovation was related to how the bands were manufactured and how to deal with the reaction. We chose a gas clutch to release the load but a geometric lock would've been better. Still regret not getting it mobile.
It really doesn't matter whether one is trading soy futures, silver, stocks or cryptocurrencies. Markets generally move in cycles, which can last from a few days to a couple of years.
It is a much more complicated than some would have you believe but from KING'S approach which I'm involved with, bear market aren't worth losing from if you use the ongoing new bie/investor programs.
WEIRD! I had the EXACT same thought when I first watched this video... 4 days ago! I agree and would love see this put into practical application. Of course it could only be used for unmanned things such as satellites due to the extreme G's it would most likely produce at that scale. You'd also have to consider the possible effect it may have on the Earth's actual orbit considering that it's surface is exclusively what would be propelling it (as opposed to rocket fuel). I think this idea is a GREAT one! THINK of all the possibilities! Eco-Friendly as well!
@@MrUssy101 but i don't think this undermines these kinds of accomplishments cause such mechanical solutions are very useful for space applications which helps us record the very data through which we study and learn more about global warming and how to tackle it- so it is helping solve global warming indirectly :)
It is tempting to think that a 300 gee force would "kill basically any living creature," but that is far from true. A typical concussion due to linear acceleration happens if your head accelerates in the ballpark of 100 gees. And even 300 gees is survivable, though the concussion is likely to be severe. It's just that the acceleration is very brief, as it is with this jumper. While a 300 gee jump would cause serious injury to a human, fleas experience peak accelerations over 800 gees when jumping, and woodpecker heads experience accelerations of over 1200 gees when pecking (on every single peck!). So it certainly won't kill everything.
Thanks for having some numbers. I was going to say the smaller the creature the greater the survivable g force but that's an over simplification. Smaller creatures have proportionally narrower bones so they trade some of their g force survivability for less bone building.
@@andrewharrison8436 Well the animals I mentioned have special adaptations to survive those accelerations, so they will never compare directly to animals that don't. That said, it is definitely true on large scales that smaller organisms take acceleration better. The extreme case are bacteria. _E. coli_ and _P. denitrificans_ have been found to survive and even proliferate at >400,000 g.
7:30 The same concept applies to bows. As you increase arrow weight, the bow can transfer more energy to the arrow. In most cases it is minimal and the trade off of losing velocity is not worth it, given your arrow weighs enough to absorb the bulk of the energy already. I am curious if they could damage their robot with the lack of weight. A compound bow can come apart from the lack of weight to impart energy to.
I was thinking this while watching. A modern day compound bow uses the same thing where the force profile is flattened by using pulleys so it is not just the linear exponential force profile of the bow limbs. Due to how similar the concept is and compound bows having been around a while now, I was surprised it wasn't mentioned.
And the work multiplication could be compared to a wind up crossbow, you store more energy than you could release in one go (with a bow) and release it with a trigger. I think it would be a relevant example for the video
Same as guns. If you dry fire, there is no primer of the bullet for firing pin / striker to hit and transfer energy to, so something will be broken. For modern firearms it will be either firing pin block or firing pin spring that will break after repeatedly do so for some 10k cycle. For rimfire or old pistol it may breaks the firing pin itself.
Hey Derek. Amazing video! I have one suggestion regarding this video. During the part where you were talking about sand fleas, try adding an image or slow mo of a sand flea, so that when I see the drawing about its muscle next, I can relate it to the image or video of it jumping. I didn't know what sand fleas looked liked and hence I couldn't understand this part.
I wonder if adding a Small strong magnet in the center inside of each carbon fiber spring would increase the efficiency. This may possibly be achieved by not allowing the spring to rebound outward after its full release inward. By allowing the magnets to lock together after ignition might hold things more streamline on release. I noticed some wobble in the slow mo as the springs rebound. Stabilizing that energy may help thrust upward you could always add or subtract weight in the nose to balance the addition of the magnets added weight. Just a thought I may be way off… Very unique science here either way. Great video.
You may be right it would be something to try. But on the otherhand, have ou ever seen an arrow in flight in slow motion? Its not at all like the expression "flew straight as an arrow". It actually moves through the air like a snake or like an eel in water! Its like a natural gyroscope of sorts due to harmonics is my understanding. Perhaps that wobble is part of what makes it what it is, like the arrow? Only removing the wobble will tell. I wish i could do that experiment, it would be fun to see the result!
Very interesting. I kept waiting for the landing, reposition and launch again demonstrated. At some point the battery goes dead so how many jumps can it make?
It's funny that people have been making this type of spring in Polybridge for years now. The so called "Diamond Spring", but it was almost always used for compressing something very fast. Rotated 90 degrees, and suddenly it's used for expanding something very fast.
I was wondering where I remember exactly the same design from! It is obviously lacking the "elastic carbon fiber arms" part, but exactly matches one of their earlier prototypes with the hinges.
The Hog Rider is a fast ground troop with medium hit points, low damage, and the ability to jump over enemy Walls. He is unlocked from the Spell Valley (Arena 5). He is a quick building-targeting, melee troop with moderately high hitpoints and damage
Wonder how it jumps from sand, and how the compression characteristics of moondust would change the launch characteristics … perhaps a collapsible foot at the base would overcome soft ground without adding too much drag?
Yes....The first jump would be unaffected,providing you don't push it into the loose lunar regolith.Jumping out of a deep crater might be more difficult. Weight is critical so a small bladder of compressed air may impact its performance. I would love to see it scaled up and tested on the Moon.
@River Stone The beauty of science is that it stands up to skepticism. “Scientists don't concentrate on what they know, which is considerable but also minuscule, but rather on what they don't know. The one big fact is that science traffics in ignorance, cultivates it, and is driven by it.” “Ignorance follows knowledge, not the other way around.”
I worked in the injection moulding industry as a technician and have operated machines with clamp forces and speeds far beyond what the pump and motor would normally be capable of. They relied on an accumulator, basically a pressure vessel that was ‘charged’ by the pump and motor in the idle time between cycles. Imagine if robots employed this principle… 🤔
A robot that walks using pneumatics as the source of energy for moving its limbs... It would have a tank for storing pressure, a compressor and valves directing air to the tank or straight to the limbs. During normal movement and when standing still, air pressure not needed for movement would be directed into the tank but when it needs to, it could release a bunch of pressure from the tank to, for example, jump. Or the pneumatic system could be used only for boosting the movements otherwise accomplished with electric motors when the robot needs to do more than just walk normally.
@@Kepe That’s exactly what I’m talking about. Except that nitrogen would be used rather than air. An accumulator would contain a nitrogen filled bag which can be compressed much more than air. Hydraulic fluid would be pumped into the accumulator which would compress the nitrogen filled bag allowing for much higher stored energy than with air. This is how the accumulators in an injection moulding machine work.
@@welshsteve2009 i think well pumps do something similar, but i think the compressed gas acts as more of a buffer to keep the pump from cycling constantly.
@@SaintSaint The machines I ran pumped hydraulic fluid. The nitrogen in the accumulators can compress more efficiently than a spring and produce a more desirable force curve.
That is an incredibly detailed video into jumping and I love it. It would be amazing to see jumpers on the moon or mars as that is a highly efficient method of travel.🔥
So there are these leg things, basically stilts, that strap onto your shoes and add about a foot and 8lbs of weight/height to you, and can enable you to jump around 9ft depending on your mass and run at very high speeds. The trick is a carbon fiber leaf spring in the back. They’re fun to use but take a lot of practice.
I'd love to see this type of robot device installed into the knees of one of those humanoid robots featured in the clips of this video. With programming, the more the motors would turn the springs thus compressing, you could alter the robots stance, lower and upper body position to compensate the energy exertion. Then boom, you have a leaping humanoid robot
They already have robots that can do flips. Boston dynamics has some, and has had them for years now. So this isnt that impressive. I would be more impressed if they taught robots how to use jet propulsion technology, so they can hover like a harrier jet
this sort of thing also seems like it's probably going to be way, way better at returning energy for every single step, than electric motors would be able to. With that, you've really solved a good portion of battery power issues with those sorts of robots.
I was thinking about it, and it could be made in such a way that under normal operation, the spring is basically disconnected, but then when they want the extra jump power, it can lock and the motors would then compress the spring as it gets into jumping position and releases it.
I imagine that the timescale requirements of these humanoid robots doesn't allow for a long winding up periods - they have to perform rapid movements and it is not known what direction those movements are gonna be. Those robots are sensing the environment and depending on outside factors they decide how they will move.
I feel like this principle could be applied to competitive robot battles very effectively. The drawback being it'd take a long time to recharge the weapon if it missed, but if it hit, it would be devastating.
Nah the Robot is called the swarm, itd be round with like 8 of these around it. Then they just repeatedly jump into the other robot with barbed pikes attached the the end. If not destroyed its knocked over or slowed down enough by the jumper robots. The main machine then comes with a big hammer and just rapid fire swings on it. Worst case scenario, the pikes stick in, recharges then starts launching the other robot all over the place until it breaks
This could literally launch itself out of the gravity well of smaller solar system bodies, such as asteroids, or comets. Another useful application for mechanical launching could be lunar bases. Without an atmosphere, escaping rocket exhaust can accelerate dust close to escape velocity. This could have a sandblasting effect of structures great distances away from the launch point. If a vehicle could jump a significant height, before igniting traditional rocket engines, this could be reduced.
A great point! I was also thinking of this usage for pre-launch staging! If you're launching a rocket, you probably don't need/want the spring to be part of the launch vehicle. It's a little silly, but why not use a spring to start a rail gun launch? Rocket-powered dust would be very scary on an asteroid or even a moon. I never thought of that!
@@Jacob-ft3oz well on the moon it wouldn’t be 300gs. When the Apollo astronauts lifted off the moon, they experienced around .33gs, they later said it felt like riding in an elevator. When astronauts lift off from earth they experience 3gs. Trained pilots can handle about about 9gs of sustained, positive upward acceleration, so on the moon the acceleration of this craft would still be deadly. On a smaller moon or asteroid with about 1/3-1/4 of the gravity of the moon, however, such acceleration would be tolerable. Edit: sorry, this is wrong. The 0.33gs felt by the astronauts was during descent, not liftoff, where the g force would of course just be the acceleration of the spacecraft, with nothing to do with the gravity of the moon. It requires less velocity to escape the moon’s gravity well, so in that sense astronauts would be exposed to fewer Gs, but that is the only effect of the moon’s gravity on liftoff.
I love this kind of stuff. These designs and discoveries that seem so miniscule and irrelevant are always my favourite thing. We all thought we knew springs, but here they are designing a new spring. I cannot wait to see how these change the future products
What a cool and inexpensive little device. Imagine the assistance they’ll be in moon exploration. Low shipping weight and build cost and the possibility of adapting them for different tasks. I can see hundreds of these little guys working in the regolith on the moon
If this were used in space though, the elastic would almost instantly dry out in the cold temperatures and so this wouldn’t work unless you insulated the contraption which would significantly reduce the power of this. It would also cause much resistance in acceleration.
That’s really neat and in some way it reminds me of a small high school project we had to do. My design was great as it was, but it lost a lot of kinetic energy that could have been utilized. When I came up with an extremely simple idea on how to utilize the kinetic energy, the efficiency increased by around a quarter. I see the same thing on this design. The carbon fiber “bows” slap each other at the end. All lost energy. A mechanism in the middle that takes the “hit” from the bows and redirects it towards the bottom would increase the energy efficiency . Whether the extra weight (you would need to add more dead weight on top as well) and complexity of the added mechanism would be worth it, I have no idea. Just something the design team of this awesome little robot could look into.
I think the bows banging into each other at the end is just the kinetic energy of some very light bits of carbon fiber moving sideways. A mechanism to turn that into a useful downward force at the end of the 9 millisecond takeoff would seem to be very complicated, but interesting.
it's stuff like this that makes me relieved. I'm always glad we can actually outperform biology instead of being limited by biomimicry since biology tends to be the best example we have.
@@bartbroekhuizen5617 Hmm not really, wheels simply require a flat terrain, there is plenty of those in nature. Some beetles curl up poop into a wheel and use it to move around, but it's a real mystery why no spherical body plans evolved, I think Richard Dawkins even published a paper on once.
@@1248erik again natural latex rubber comes to bite you in the ass. I know we're talking about engineering, but nature's always going to nail you on the chemistry.
Going the opposite direction with this design, I wonder how long a very efficient spring could deliver energy at a measured rate? Could it be a form of mechanical energy storage and delivery?
@@supergps2000 Except the amount of energy stored in the winding spring of a mechanical watch is miniscule. I was thinking like a battery, and storing enough energy to power a car or bike or something.
The issue is that springs are under stress when they are compressed, so it would be either dangerous (imagine a battery exploding) or would deform the string over time. There's a reason why you should NEVER leave a bow strung, and why you should always check strung instrument before playing. The first one may snap, the second one is constantly deforming.
@@swbusby That's exactly why springs aren't great for storing large amounts of energy. Compared to the alternatives, their energy density is abysmal, they're heavy, and they're dangerous. Other mechanical energy storage systems, like flywheels and pneumatic pressure, have the same problems to various degrees. They have useful applications, but they almost always are moving something else. They quickly become inefficient when they have to store enough energy to move themselves, too.
I could imagine some sort of stored energy being used with a running robot. It would have to - store, release, store, release - with every running stride. To build such a reliable and consistent device would be a hug engineering challenge, though.
@@benjackson6260 Literally what a killer usb does. A bunch of small capacitors. Your PC's usb slots aren't putting out much energy at all. (5 volts at cirka 2 amps). But if you let a pc killer stay plugged in for long enough, you'll maximize the capacitors and trigger a sudden jolt of power at about 215 volts straight into the pc. Low power over a long period of time = maximum power ejected at milliseconds.
@@LinusAkaPano yep... Actually have tried this on my principal when I was in school... Blew his pc up... Unfortunately he wasn't using it at the time... Otherwise would have been full payback... 😆😆😂
I’m no scientist but I think you could use the contraption as feet for robots. Initially launch them with motor wind up, but upon landing from the jump restoring the energy into the spring.
Repent and follow Jesus my friend! Repenting doesn't mean confessing your sins to others, but to stop doing them altogether. Belief in Messiah alone is not enough to get you into heaven - Matthew 7:21-23, John 3:3, John 3:36 (ESV is the best translation for John 3:36). Contemplate how the Roman empire fulfilled the role of the beast from the sea in Revelation 13. Revelation 17 confirms that it is in fact Rome. From this we can conclude that A) Jesus is the Son of God and can predict the future or make it happen, B) The world leaders/nations/governments etc have been conspiring together for the last 3000+ years to accomplish the religion of the Israelites C) History as we know it is fake. You don't really need to speculate though because you can start a relationship with God and have proof. Call on the name of Jesus and pray for Him to intervene in your life. - Revelation 3:20 Revelation 6 1st Seal: White horse = Roman Empire conquering nations under Trajan 98-117 AD & Gospel spreading rapidly. 2nd Seal: Red horse, bloody civil wars with 32 different Emperors, most killed by the sword. 185-284 AD 3rd Seal: Black horse, economic despair from high taxes to pay for wars, farmers stopped growing. 200-250 AD 4th Seal: Pale horse, 1/4th of Romans died from famine, pestilence; at one point 5,000 dying per day. 250-300 AD 5th Seal: Diocletian persecuted Smyrna church era saints for ten years, blood crying out for vengeance. 303-312 AD 6th Seal: Political upheaval in the declining Roman Empire while the leaders battled each other. 313-395 AD Revelation 7 Sealing of 144,000, the saints, before trumpet war judgments, which led to the fall of the Roman Empire. Revelation 8 1st Trumpet: Alaric and the Goths attacked from the north, the path of hail, and set it on fire. 400-410 AD 2nd Trumpet: Genseric and the Vandals attacked the seas and coastlands, the blood of sailors in water. 425-470 AD 3rd Trumpet: Attila and the Huns scourged the Danube, Rhine & Po rivers area, dead bodies made water bitter. 451 AD 4th Trumpet: Odoacer and the Heruli caused the last Western Emperor (sun), Senate (moon) to lose power. 476 AD With the Western Roman Emperor (restrainer of 2 Thes. 2) removed; the son of perdition Popes took power. Revelation 9 Two woe judgments against the central 1/3rd and eastern 1/3rd of the Roman Empire. 612-1453 AD 5th Trumpet: Locust & scorpions point to Arabia, the rise of the Muslim army. Islam hides Gospel from Arabs. 612-762 AD 6th Trumpet: Turks released to attack Constantinople with large cannons (fire, smoke, brimstone). 1062-1453 AD Revelation 10 The little book is the printed Bible, which was needed after the Dark Ages when Scriptures were banned by Popes. Revelation 11 7th Trumpet: Martin Luther measured Roman Church; found that it’s an apostate church, not part of true temple. The two witnesses are the Scriptures and saints who proclaim the pure Gospel and testify against the antichrist Popes. Papal Church pronounced Christendom dead in 1514 AD. Silence for 3.5 years. Then Luther posted his 95 Thesis, which sparked the Protestant Reformation and brought the witnesses back to life. Millions of Catholics were saved. Revelation 12 Satan used the Roman Empire to try to wipe out the early Church, Satan was cast down as the Empire collapsed. Revelation 13 The antichrist beast Popes reigned in power 1,260 years, 538-1798, is the little horn of Daniel 7, son of perdition. The false prophet Jesuit Superior General rose to power from land (earth) of Vatican and has created many deceptions. Revelation 14 Points to great harvest during the Protestant Reformation & wrath on Catholic countries who obey antichrist Pope. Revelation 15 Overcoming saints victorious over the beast. Prelude to 7 vials and judgment on those who support Papal Rome. Revelation 16 1st Vial: The foul sore of atheism was poured out on Catholic France, leaving them with no hope, led to revolution. 2nd Vial: The French Revolution started in 1793, killed 250,000, as France had obeyed the Pope and killed saints. 3rd Vial: The French Revolution spread to rural areas of France, where Protestants had been killed in river areas. 4th Vial: The bloody Napoleonic wars shed the blood of countries who had revered and obeyed the antichrist Pope. 5th Vial: Judgment on the seat of the beast. Papal States invaded in 1798, Pope imprisoned, removed from power. 6th Vial: The Turks vast domain dried up, they were only left with Turkey. They lost control of Palestine in 1917 AD, Israel became a nation again in 1948
No not really. 1 you'd have to land upright and this is basically rocket which land upsidedown without correction and 2 that is a massive amount of energy stored up and due to aerodynamic drag it will never have enough velocity coming back down to fully compress the spring even under perfect conditions.
This reminds me of something I did back in high school. I'd take a rubber band and wrap it around a ballpoint pen, then pull the rubber band taught and allow the pen to slip out, shooting upwards as the rubber band released its stored energy. I didn't ever exactly measure how high it went, but I think it was launched at least 10 meters. Very entertaining.
"I did my PHD studying how much people learn from videos. Unfortunately it is shockingly little" -Guy who makes mind blowing educational videos for a living
From a seated position my big male German Shepherd dog could jump 10 feet in the air with no sign he was going to launch until he actually leapt, when I first saw him do this I thought I was imagining things then he did it over and over, this was indoors and what he was actually doing was catching and eating flies that had settled on the ceiling, our early Victorian house has 10 feet high ceilings you see. I observed him do this for some time and he never missed, he would also catch flies in flight using the same technique, he would watch the fly and when he could anticipate the fly's path through the air, up he'd go making adjustments as he went using his vision to intercept the fly perfectly. He could also catch rabbits in long grass using his ears, he could hear the rabbit moving in the grass then he'd leap 10 feet or more in the air above where he judged the rabbit to be, then with his head facing down and his ears fully extended he would come down homing in on the rabbit as he came, then with his paws he would fold the grass over the rabbit to make a cage to hold it and then go in with the teeth for the kill, I watched him do this in farmers fields when out walking and he could catch a rabbit every 2 minutes if I let him, we actually used to take sacks with us to collect the meat, which became dog food after pressure cooking it. That German Shepherd dog was the son of many great Champions and was my best in my lifetime dog/friend by far and I've had some great dogs, his name was Charlie and he's gone to doggie heaven these past 15 years and his body is buried beside my front gate where he spent so much of his time waiting for me to come home and now he waits for an eternity, that good and loyal dog and after 15 years I still think about him and miss him most days..
But then it's just tall, not high. That small jumping robot would still be the highest, yours would (probably) be the tallest, although I'm sure there's taller robots that can jump higher than 10cm.
@@Sekir80 What? Based on his sentence it still wouldn't be the highest robot in the world. Tall means it's vertical measured length to compare heights and high means it's elevation from the ground. In this case the robot would be 10 centimeter higher during the jump but not 10 centimeter taller. Considering he defined how tall the robot would be, his sentence was just wrongly worded from the beginning.
@@Sekir80 So yeah there's plenty of use for tall, you'd never say a person is 180cm high. A person is 180cm tall. That goes for any object that is measurable.
Though it would not be a jump, this same design including a flywheel in addition to the spin would be DOPE. Could intermittently retention the spool if the trigger mechanism was redesigned, be used for gyroscope steering and potentially increase max flight distance?
You're thinking on the right track for a serious design (unlike the one presented with its rubber bands). Take a look at the MASCOT lander that was deployed as a part of the HYABUSA-2 mission to Ryugu. It's entire locomotion plan was basically a flywheel that stopped suddenly, causing the lander to hop up. It could also use this to make "mini-moves" to reposition/fix orientation. For actual space applications, CMGs are the only real way to perform mechanical jumps, as the rubber bands shown here are just silly.
@@choerm Flywheels may be a good alternative, but what do you have against rubber bands? Derek mentioned that latex rubber has an unusually high potential for storing energy per kilogram of material, so latex rubber bands seem like a pretty decent material choice for lightweight applications. Maybe not for a full size rover, but probably alright for several lightweight drones. And I’m sure the finished product will not use office-supply rubber bands but a specially manufactured latex rubber designed to fit the drone’s needs.
@@diggoran Polymers degrade extremely quickly in space. Temperature fluctuations, radiation exposure, and vacuum off-gassing destroys pretty much every polymer (including rubber). There will never be rubber wheels, seals, or bands that last longer than the trip to get to the moon.
This world is rapidly passing away and I hope that you repent and take time to change before all out disaster occurs! Belief in messiah alone is not enough to grant you salvation - Matthew 7:21-23, John 3:3, John 3:36 (ESV is the best translation for John 3:36) if you believed in Messiah you would be following His commands as best as you could. If you are not a follower of Messiah I would highly recommend becoming one. Call on the name of Jesus and pray for Him to intervene in your life - Revelation 3:20. Contemplate how the Roman Empire fulfilled the role of the beast from the sea in Revelation 13 over the course of 1260+ years. Revelation 17 confirms that the beast is in fact Rome. From this we can conclude that A) Jesus is the Son of God and can predict the future or make it happen, B) The world leaders/nations/governments etc have been conspiring together for the last 3000+ years going back to Babylon and before, C) History as we know it is fake. You don't really need to speculate once you start a relationship with God. Can't get a response from God? Fasting can help increase your perception and prayer can help initiate events. God will ignore you if your prayer does not align with His purpose (James 4:3) or if you are approaching Him when "unclean" (Isaiah 1:15, Isaiah 59:2, Micah 3:4). Stop eating food sacrificed to idols (McDonald's, Wendy's etc) stop glorifying yourself on social media or making other images of yourself (Second Commandment), stop gossiping about other people, stop watching obscene content etc. Have a blessed day!
If you wanna be successful, you most take responsibility for your emotions, not place the blame on others. In addition to make you feel more guilty about your faults, pointing the finger at others will only serve to increase your sense of personal accountability. There's always a risk in every investment, yet people still invest and succeed. You most look outward if you wanna be successful in life.
7:47 wouldn't things like froghoppers count as work multiplication? they bend their exoskeletons to use them as a spring. similarly, the trap-jaw ant bends its head outwards to use it as a spring. In both cases, the spring is powering the jump.
As far as I know, in those two cases, they use the spring energy instantaneously, sort of like squatting before a jump. Work multiplication requires building up energy, and restraining from using it during the build up
@@eoghanley I get what you are saying about storing work, but I don't think it's like squatting for a jump. Muscles are not used to jump, they are used to load up a spring which is then locked by a latch. So they are storing energy and releasing energy that their muscles alone wouldn't be able to exert. It's not just squatting and then using muscles to jump, they are literally spring-loaded. It seems some planthoppers bend their exoskeleton to use as a spring. For the trap-jaw ant, the ant's "skull" itself is bending like a bow. The muscles aren't just shutting the jaws, but tensioning a bow. If those don't work, what about springtails? they have spring-loaded furcula to perform some of the fastest jumps. Unless we mean here that a slingshot doesn't count as work multiplication, but then, it seems a bit of a technicality. One can imagine a linear motor instead of a rotational one, would the linear motor not count? both are storing the same amount of energy and releasing it.
@@facestealer1040 yea, I was thinking about these kinds of things. But the task was specifically about jumping (which is a technicality, I know), so I was thinking of things like springtails, planthoppers and technically trap-jaw ants, which sometimes use their jaws to quickly propel themselves away from danger.
@@jesuizanmich The idea is that the work multiplication occurs by applying a force in multiple “strokes”. While the frog hopper tensions both its exoskeleton and muscles to jump, the muscles only perform one stroke during which both they and the exoskeleton are tensioned. Work multiplication would occur if the froghopper tensioned and released its muscles multiple times to repeatedly add additional tension to the exoskeleton, sort of like a ratchet strap. If the froghopper could perform this repeated ratcheting to add more and more tension to its exoskeleton, it would be able to store much more energy in the same frame size relative to what can be stored in a single stroke. Work multiplication grants you a much higher energy density than can be achieved with what nature has developed. A slingshot would not count as work multiplication as the tensioning is performed in a single drawing motion. One could imagine a slingshot where the payload is only drawn a short distance back, but the launching mechanism is tightened by a rotational motor to add more and more tension to the slingshot in a smaller frame. The size of the slingshot is greatly decreased through work multiplication, though the same amount of energy could be stored. A linear motor-drawn slingshot (essentially a standard slingshot) requires the frame to be much larger so that it can perform the draw back in a single stroke and would not be considered work multiplication. It’s definitely a technicality but when it comes to energy density it makes a big difference.
On a chemical level, natural musculature works similarly to the Jumper's motor slowly storing energy in the spring. The fibers are loaded with ATP and then the energy can be quickly released mechanically. Muscles are unidirectional chemical springs. Muscles are biochemical springs that fire asymmetrically.
Would so love to work on this project! Already have an idea to try out. Physics students weren’t *nearly* as cool in the late 80’s so I chose a different curriculum. Gawd, I need a 3D printer! Ugh!
Have you tried…. Building a curved jig and laminate the legs so a straight, laminated piece of carbon fiber has energy storage in it already. A spacer would need to likely be added so the motorized tensioning system could still be used. Idea comes from my interest in laminated recurve bows. Really cool project!
@@vectoralphaSec Attended large school best known for Engineering. Including Master’s, there were about 32,000 students in attendance at the time. There was a physics class for non-engineers, a physics class for engineers and a physics class for those on the path to a Physics degree. There were about 11 of us in that class. Have you ever watched “Revenge of the Nerds”? These guys weren’t cool enough for that movie. (Yes, no females.)
Second idea … maybe come up with a way to offset the hinges of the top and bottom carbon fiber legs in such a way so that the rocket has some spin and loses less energy through “the wiggles”. Anyone wanna send me a 3D printer? :P
So, to be clear, if I jump right as I fart, that wouldn't technically class as a jump. I would be "taking off" as it were. Fascinating...
u get me
OPM 168
yep that was definetly the main point of this video
Wouln't your mass decrease, thus not counting as a jump?
and if you mini fart 2/3 times before an actual burst of true fart you can jump higher?
I love how simple this robot is and yet this exact combination of mechanisms is groundbreaking.
Simple is beautiful
Can you buy it?
Is it available to buy
it certanly isn't groundbreaking. The basic principle has been in use for thousands of years in catapults. It's groundbreaking in the sense that it doesn't go to the common place when we think about "robots", it's a barely eletrocnic catapult
@@20teverify lol, this is correct, the only groundbreaking aspect here is the incessant miss-use of the word 'robot'.
That's just amazing
Hi
Hi sir you are great
Great video
Great video
Thanks for the video
I love engineering like this- simple structures deployed in novel ways, designed rigorously and exploiting particular materials to achieve a breakthrough result.
Despite all the "Nope, impossible, cant be done" spammers.
These people should be designing software interfaces. Because man, that field is packed with hacks.
I imagine the spring y part stays on the ground and are 100feet tall ish with a payload for space or meet up with a few blimps at 50,000-70,000 feet land and then do it again to reach space
When I made a water bottle rocket recently, I was surprised that they advised that a weight be added to the top of the rocket. It certainly made a positive difference. So I'm interested to see the same principle at work here.
Yeah rockets are weird in that you need to add weight to the nose otherwise they are unstable. IIRC it's because the center of mass is the center or rotation and by moving it higher it creates a higher moment of inertia and the air resistance can actually stabilize the rocket. Similar to how it's a lot easier to balance a pole with weight on the end then without since it takes more time to rotate and you have more time to correct.
They do, all the motors and electronics are located at the top.
The idea is simple, if your center of mass is in front of your center of lift, your rocket will flip around, that's why a dart has most of its mass at the front, and all its wings at the rear.
It's something you learn when playing kerbal space program, if your rear is too heavy your rocket will flip at the slightest push of air.
for a rocket the center of gravity (which is the point the rocket rotates about) has to be in front of the center of area (which is the central point that the wind pushes) in order to be stable.
ok
G😊sn
Have they looked at efficiency loss from jumping on a compressible surface, like loose sand? I would think that would be a limiting factor in an environment like the moon, where there is a large quantity of fine particles on the surface.
Efficiency loss wouldn't be much I guess
Lunar ground is pretty solid overrall isn't it?
11:40 maybe ? Not all of the moon is made of regolith(the granules are a bit bigger than sand ) ,i think the seas are made of mafic rock which is incompressible
I was thinking of this the other way around, what if it lands on a soft spot and digs itselfs in/lands under a rock or something like this. Would it be able to get itself unstuck?
@@dkaloger5720 what about cheese?
Such a simple mechanism yet it broke the highest jump record.. Scientific discoveries and corresponding engineered devices are truly amazing aspects of human exploration .. like two sides of the same coin..
It's not that simple. I'd argue that the first space rockets are simpler for people to understand
Jesus Christ died for our sins, rose from the dead, and gives salvation to everyone who has faith in him. True faith in Jesus will have you bear good fruit and *drastically* change for the better! Those led by the Holy Spirit do not abide in wickedness.
God is three in one; the Father, the Son, and the Holy Spirit! Bless him!
As I am led by the Holy Spirit, nothing I state is a lie, but the truth of God. Anyone who tells you differently is misinformed or a liar. They do not know God, nor led by him.
Anyone who *claims* to be a Christian and is against what I am doing, for any reason; the Holy Spirit does not dwell within them. They know not God, read his word, and their religion is in vain. Do not hear them, they will mislead you, the lost cannot guide the lost.
When you trust in God and cast your cares (worries, anxiety, depression, suicidal thoughts) upon him, they will be NO MORE!
Know that there is power in the name Jesus Christ! His name casts out demons and heals!
The world is wicked, evil, and of the devil.
I too, was a wicked sinner of the world before I opened my heart to God. I am living proof of God's work and fruitfulness! He is an active God who hears the prayers of his! God's children are set apart (holy) and righteous. The devil is a liar that comes to steal, to kill, and to destroy; that includes your relationship with God.
@@Call_Upon_YAH Actually, Zoroaster did, and there is only one God and his name is Ahuramazda
@@aceman0000099 You're forgetting the MIGHTY ATHIESMO, god of Atheism... Final thought: how long before this device is weaponised? (too late 😵)
2:47 The tiny frog jumping and missing dragon fly while it slightly moves out the way had me dying 😂😂😂😂
Jokes on you because I pirated a scientific journal and already know about it.
based
Hey how did ya pirate a journal, am a geek, i wanna know so bad
I need to pirate some journal too
@@confusedsperm9521 all you need is a sword and an eyepatch.
@@𱁬 jokes on you I wanna die, also it's sad AF that you gotta do that to get subs lmao
If we got enough likes together would Derek commission the 10x larger version? Deployable glide surfaces + parachute + camera package is my vote for the payload.
You forgot the seat haha
@@DemsW yeah.... 300G... *splosch* xD
@@DemsW yeah, I also kindly decline. Or do you want to deply the Boston Dynamics from 10:08 robots with that thing?
Well the reason it only exists as a rendered model is it will take years of materials science work to solve. The amount carbon fiber can flex or rubber can stretch doesn't scale the same way mass does in a mathematical model.
Part of the reason the prototype works has a lot to do with 'the physics of the small' vs 'the physics of the large'
@@chrisblake4198 I wonder if the size of the prototype they built is optimized for the material strength they are using
I've taken suspension springs out of cars and every time I would treat it as if it was a loaded gun. The full scale version of this jumper is absolutely terrifying. I wouldn't want to be anywhere near that thing when it was fully compressed.
Imagine terminator but with an army of robots such as these the size of a person
Aren't you near four compressed suspension springs whenever you're driving a car?
Check out mooring line accidents
Had similar thoughts about the upscaled jumper. It would be a decapitation machine.
@@TAllenYT The key is that they are trapped while driving. When removing them for repair work, a lot of cars require that the springs be removed under tension. That typically means a careful extraction as if whatever holding the springs in tension slips or fails, the spring instantly releases the bound energy which can cause quite a bit of danger.
That clip at 2:40 is actually an incredible insight into how fast this thing- and things in general can really get
8:00 the idea of the small motor working over time to store energy reminds me of how the mantis shrimp punches so hard. It uses its muscles to slowly bring its hands in and then latches them and when the latch releases... POW!
yes thats missing in this video! the mantis shrimp punches INCREDIBLY hard.
Everything comes back to the mantis shrimp.
Oh yeah just like that
Mhm
Oh yeah ;)
I'm not sure why, but such a small and simple thing made this one of my more favorite videos of yours. Especially once you pointed out how invaluable this would be on other planets with little to no atmosphere. I wonder if something like this could also implement a passive propeller that would slow its decent 🤔
It wouldn't be difficult to add something like retractable propellers, deploying automatically during descent, which potentially could allow the robot to start winding the spring even before it lands, thus reducing time between hops
im not sure propeller would work bc there would be almost zero mass on the planets
I wonder, could the jumping robot be so strong to the point where it shoots off and leaves the planet/ moon ? 🧐
Propeller and parachute would both be useless in 0 atmosphere. On someplace like mars where an atmosphere is thinner they would be work but very ineffective. Someplace like Venus where the atmosphere is thick the propeller would have greater efficiency than the jumping because of increased aero resistance
@@prapanthebachelorette6803 It would need to jump a lot further. The current estimate is that it can jump 500 meters, and it would need to be able to jump a total of almost 11 million meters. This could be optimized by changing the trajectory angle to maximize the distance, and the distance increases exponentially based on a slight increase of the initial force. 500 m vs 11M m may seem like a big leap, but it isn't as big as someone may initially think it is.
1:03 Aww 😍 I’m glad you included this.
I always fart mid jump so it's not classified as a jump
What?
Same 🥶
Bros a drone
@@yossi_playz lol
You know its a good idea when you look at it and ask yourself, "how has this not been invented before?"
The NBA should allow the athletes to have nuclear missiles in their shoes so they can dunk from greater heights. It's a great idea because no one has thought of it before.
i work with patents, you'd be surprised how often we see things that would at first glance seem 'obvious'
Yes, it was. Five cent metallic jumpers with a screw or push button middle top when I was 3-5 years of age. Would jump like almost a meter, same [seems later were used in a self closing ash tray mech in bars and not sold as toys anymore. That was in the past century...
@@AutPen38 But you dont see anyone asking why no one ever thought of it before. He didnt say a good idea is one that hasnt been thought of.
lol bruh imagine if like Arabs or Muslims got revenge against the racist jews/colonialists using this idea xDDD@@AutPen38
step 1: make huge jumper
step 2: stack smaller jumper on top
step 3: repeat until size is sufficiently small
step 4: launch them successively
step 5: achieve orbit
I think you have just rediscovered the rocket
@@fostena yeah but stupider looking
At 2:24 the initial speed shown is 30m/s, while orbital speed is like 8000m/s, or 250x larger, so I'm not quite confident that this can be done
better idea- make a huge jumper and stack multiple huge jumpers on top until you can climb and escape the atmosphere
@@fostena he rediscovered the rocket equation
I would love to see them build one that is 10x larger.
Yeah I would like to see that landing...
it would be like 30kg,s and could easily be managed by a chute id imagine
Wouldn’t work if you do the maths
@@horatiotodd8723 I thought they said that it did work and would be a good idea because of inertia?
@@horatiotodd8723 So, whats the math showing it wont work? If everything is scaled up 10x, shouldn't it still work? That means using proportionally stronger bands. Proportionally stronger battens. Just 10x.
I would love to see this combined with that company creating glider drones to deliver to hospitals. They use a giant slingshot currently to get in the air, but that means they can only launch from a dedicated setup spot
Yes, It's like an arrow that carries its own bow.
I have never taken the time to thank you and your team about posting videos in spanish, I really appreciate the fact you are doing this, since here in my country no public education entity has ever taken the time to teach us as your chanel does. I know this is a no big recognition and makes no justice enough of your work and your prestigious person, but I just happen to notice that no other science youtuber from a 1st world country has taken the effort, time or resources, to get their content being translated expecting nothing in exchange. I feel really exited about the things I learn in everyone of your videos, I wish I have had a better science foundation to understand in full about the whole content of the topics but, as you might probably certainly assumed science education is really neglected in third world countries, now that Im a grown up person I realize how important science education is, and I will definitely encourage my kids to learn about it and with the help of your videos that will going to be easier for them (at least until they learn english since there are so much knowledge we still need to get but the majority is still available just in english), greetings. A fan from C.A.
I’m obviously not Derek, but I hope he sees this! What a wonderful comment to read. I have many problems with the public education system here in America, but this was humbling, and makes me grateful for what I did get.
May you continue to explore your curiosity as you access the knowledge denied to you. 🙏🏻 We all deserve an education, I hope your family gets to experience the joy of discovery that you have ❤️
Sending much love to South America from up here in North America!
Kurzgesagt has a Spanish TH-cam channel, they are a good educational resource.
@@Benzy670 thanks a lot, I hope you are doing well up there, here is raining a lot, be safe & live long and prosper 🖖 😆
@@bod9001a done, I have just suscribed me to his channel you are totally right, his content is in spanish too an it seems really interesting to watch, greetings up to where you are located 🙂
I wish there was an Urdu version. People from Pakistan, India, Nepal, and Bangladesh could watch that version. It would not only increase the number of subscribers for Derek but also spark interest in kids in those countries. It would be amazing. I hope he sees this.
The old British sci fi shows UFO and Captain Scarlet both feature "Moon Hoppers" as a form of lunar transport. I remember thinking it was absurd at the time, but maybe they weren't so crazy.
Well only if you include fictional technology that enables you to survive the acceleration, in which case there should be way easier methods of transportation
....k?
Lol they were
Naa, humans won't evolve to endure 30 Gs anytime soon.
@@oyuyuy To make the jump endurable, you would have to reduce the Gs. You can, to some extent, if there is some axial space in the craft.
Human body would receive more damage enduring 30 g for 1 second than 15 g for 2 seconds, even less 10 g for 3 seconds (any astronaut can).
And the three situations would produce the same overall acceleration.
All you have to do is to smooth it up, for example plunging the passenger into a non newtonian fluid gel.
This man just hooked me up to tell me about jumps for 11 minutes.
And I feel like I enjoyed every second of it.
With this logic my toaster and electric toothbrush are also "robots"
So simple yet so elegant. Genius.
Genius. So elegant yet so simple.
So elegant. Genius yet so simple.
So yet. Elegant, so simple genius.
So genius yet so simple elegant
What most people think genius is: “I could never think of that”
What genius actually is: “I am an idiot for not thinking of that sooner”
I love this kind of innovation because it is SO simple yet it has extraordinary results!
Jesus Christ died for our sins, rose from the dead, and gives salvation to everyone who has faith in him. True faith in Jesus will have you bear good fruit and *drastically* change for the better! Those led by the Holy Spirit do not abide in wickedness.
God is three in one; the Father, the Son, and the Holy Spirit! Bless him!
As I am led by the Holy Spirit, nothing I state is a lie, but the truth of God. Anyone who tells you differently is misinformed or a liar. They do not know God, nor led by him.
Anyone who *claims* to be a Christian and is against what I am doing, for any reason; the Holy Spirit does not dwell within them. They know not God, read his word, and their religion is in vain. Do not hear them, they will mislead you, the lost cannot guide the lost.
When you trust in God and cast your cares (worries, anxiety, depression, suicidal thoughts) upon him, they will be NO MORE!
Know that there is power in the name Jesus Christ! His name casts out demons and heals!
The world is wicked, evil, and of the devil.
I too, was a wicked sinner of the world before I opened my heart to God. I am living proof of God's work and fruitfulness! He is an active God who hears the prayers of his! God's children are set apart (holy) and righteous. The devil is a liar that comes to steal, to kill, and to destroy; that includes your relationship with God.
You could say the same about making the choice to live for Jesus over the world! 😄
@@Call_Upon_YAH satan saves. join him and give up your silly ways of proselytizing on science videos, where literally nobody is looking for this content.
I'd appreciate a graph showing additional weight at the top vs height of jump. Obviously at some point the additional weight will make jumps decrease height but at what inflection point and how quickly does height fall off past that point.
The relationship is between the mass of the spring and the mass of the head. A "perfect" collision will have both of equal mass. Imagine 2 billiard balls of equal mass vs different masses.
@@kevinliang9502 Almost as if we'd be looking at impedance matching in electronics then...?
Yeah.....NO. You must remember: Top- weight is a steering-mechanism. Of course, this applies only to NASA's balloons which are weighted ON THE TOP as thrust propels. Basic laws do not apply.
@@kevinliang9502 the jump is not an elastic collision between the spring and the body, so mechanical impedance would not apply here. It is rather an elastic collision with the Earth.
Increasing the head mass is beneficial because of the mechanical advantage: the spring works as a lever, and the head is attached to the farthest point of it. It is more beneficial to accelerate the farthest mass up than waste the energy accelerating spring masses inwards and canceling each other.
@@onebronx so what would be the conclusion here ? As light springs as posible and as high of a (head-)mass ? This seems counter intuitiv shouldnt the mass at some point effect the mechanism negatively ?
This is very similar to the "flywheel bots" in Battle Bots. By spinning up the flywheel over time, they store a crap load of energy and release it all at once on its victims. That's why they always did so well.
I love the elegant and efficient design! Once it decompresses, it's shape is near perfect for flight - CoM in the front, drag in the back. Really, really well thought out.
You read my mind
@@bomajoseph8240de ir
@@bomajoseph8240de
@@bomajoseph8240 de manhã para
according to 0:43, if you jump while having an explosive diarrhea, you are technically classified as a liquid fuel rocket.
💀💀💀
A very very impressive robot that release an absolutly crazy amount of energy at once is Blip, a fighting robot that did great in BattleBots season 6. Its design uses a fabric/fiber being twisted by flywheel, constantly sped up by a motor to create a crazy contracting force when it's needed. It really packs a punch. The team has a video about the engineering of making it.
Link?
We designed a similar scheme which was only partially constructed before the team folded. Ours used latex rubber bands connected to steel cable to act on an axe. It was frightening! Some of the innovation was related to how the bands were manufactured and how to deal with the reaction. We chose a gas clutch to release the load but a geometric lock would've been better. Still regret not getting it mobile.
@@jordanchamp6126 Search for "BLIP REVEAL [Seems Reasonable Robotics]". Links usally get flagged as spam
@@metimmee Thats pretty intriguing, anywhere to see that?
We lose calories with each jump
He said mass, and the calories are being converted to energy. If you forbid that rule then you can even exist because that consumes calories.
"This is way better than wasting time in social media". Brilliantly said my friend.
Despite the fact that we're all here wasting time on social media ourselves...
@@Vousie well, at least we're learning something, compared to just scrolling around and just passing time by
I found this concept fascinating and can't wait for the toy version to be available
Kids will either lose their eyeballs or it’ll be so dumbed down that it won’t be that impressive.
@@danparish1344 A few kids' eyeballs are a small price to pay for science
You'll shoot your eye out kid!
@@Topples7 😂 (and it's not even for science is for the entertainment of the masses)
New 'toy jumping robot' linked to over 120 blind kids
You could say those robots have a lot of *potential*
lol
mgh
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always a good day when new veritasium videos comes out
Fr fr
One small spring for a man. One giant jump for mankind. Fun video, Derek!
I think saying this is not what i expected is an understatement
Would love to see a 10 times bigger one, that thing sound like it could send stuff in orbit! O_O
I love the slow build up and then "VOOM" its gone.
WEIRD! I had the EXACT same thought when I first watched this video... 4 days ago! I agree and would love see this put into practical application. Of course it could only be used for unmanned things such as satellites due to the extreme G's it would most likely produce at that scale. You'd also have to consider the possible effect it may have on the Earth's actual orbit considering that it's surface is exclusively what would be propelling it (as opposed to rocket fuel). I think this idea is a GREAT one! THINK of all the possibilities! Eco-Friendly as well!
@@dwirtz0116 it couldnt jump high enough
Making it larger doesn’t make it jump higher I believe
@@fergusfisher1315 So maybe some sort of 2-stage launch involving rocket propulsion in the second stage perhaps?
@@fergusfisher1315 watch at 11:00, it would go higher
One interesting thing to note is that humans also use latches! Think about how snapping your fingers work
05:11 "An acceleration of over 300 jeeeez!!". That's a lot of acceleration.
7:20 Chungus Steel
Time to put a hundred of these under my car
your production quality has become amazing !! It shows how much you care about everything you post
There are more important issues to concern about instead of some stoopid jumping robot. How about finding a solution for global warming maybe ???
@@MrUssy101 but i don't think this undermines these kinds of accomplishments cause such mechanical solutions are very useful for space applications which helps us record the very data through which we study and learn more about global warming and how to tackle it- so it is helping solve global warming indirectly :)
That is so hard to see in the sky! Thanks for highlighting it in that one shot, because I never would have seen it otherwise.
Hello 👋
This is a great leap forward in science.
That’s a stretch
A world record leap even
- محروم من يعلم أن وقت الضحى يقارب ( 6 ) ساعات ولايستطع أن يصلي فيها ركعتي الضحى وهي لاتستغرق ( 5 ) دقائق وهي صدقة عن ( 360 ) عضواً في جسده !.
1:55 I have seen this thing on my parents bed!
I knew someone would make a joke like that 🤣
I was gonna make one too but then I saw this.
It is tempting to think that a 300 gee force would "kill basically any living creature," but that is far from true. A typical concussion due to linear acceleration happens if your head accelerates in the ballpark of 100 gees. And even 300 gees is survivable, though the concussion is likely to be severe. It's just that the acceleration is very brief, as it is with this jumper.
While a 300 gee jump would cause serious injury to a human, fleas experience peak accelerations over 800 gees when jumping, and woodpecker heads experience accelerations of over 1200 gees when pecking (on every single peck!). So it certainly won't kill everything.
Thanks for having some numbers.
I was going to say the smaller the creature the greater the survivable g force but that's an over simplification. Smaller creatures have proportionally narrower bones so they trade some of their g force survivability for less bone building.
@@andrewharrison8436 Well the animals I mentioned have special adaptations to survive those accelerations, so they will never compare directly to animals that don't. That said, it is definitely true on large scales that smaller organisms take acceleration better. The extreme case are bacteria. _E. coli_ and _P. denitrificans_ have been found to survive and even proliferate at >400,000 g.
Its just "G force"
idk where you're getting "gee" from but that's straight up wrong. As is most of what you said.
7:30 The same concept applies to bows. As you increase arrow weight, the bow can transfer more energy to the arrow. In most cases it is minimal and the trade off of losing velocity is not worth it, given your arrow weighs enough to absorb the bulk of the energy already.
I am curious if they could damage their robot with the lack of weight. A compound bow can come apart from the lack of weight to impart energy to.
Just to clarify, I am using weight and mass interchangeably 😂
I was thinking this while watching. A modern day compound bow uses the same thing where the force profile is flattened by using pulleys so it is not just the linear exponential force profile of the bow limbs. Due to how similar the concept is and compound bows having been around a while now, I was surprised it wasn't mentioned.
And the work multiplication could be compared to a wind up crossbow, you store more energy than you could release in one go (with a bow) and release it with a trigger. I think it would be a relevant example for the video
Same as guns. If you dry fire, there is no primer of the bullet for firing pin / striker to hit and transfer energy to, so something will be broken. For modern firearms it will be either firing pin block or firing pin spring that will break after repeatedly do so for some 10k cycle. For rimfire or old pistol it may breaks the firing pin itself.
So time also equals power... Oh i get it... It's just like "SPECIAL BEAM CANNON"...
Hey Derek. Amazing video! I have one suggestion regarding this video. During the part where you were talking about sand fleas, try adding an image or slow mo of a sand flea, so that when I see the drawing about its muscle next, I can relate it to the image or video of it jumping. I didn't know what sand fleas looked liked and hence I couldn't understand this part.
I wonder if adding a Small strong magnet in the center inside of each carbon fiber spring would increase the efficiency. This may possibly be achieved by not allowing the spring to rebound outward after its full release inward. By allowing the magnets to lock together after ignition might hold things more streamline on release. I noticed some wobble in the slow mo as the springs rebound. Stabilizing that energy may help thrust upward you could always add or subtract weight in the nose to balance the addition of the magnets added weight. Just a thought I may be way off… Very unique science here either way. Great video.
Thats a cool idea, could put a velcro equivalent or something sticky to keep them together maybe
Recharging would be more energy consuming
You may be right it would be something to try. But on the otherhand, have ou ever seen an arrow in flight in slow motion? Its not at all like the expression "flew straight as an arrow". It actually moves through the air like a snake or like an eel in water!
Its like a natural gyroscope of sorts due to harmonics is my understanding. Perhaps that wobble is part of what makes it what it is, like the arrow?
Only removing the wobble will tell.
I wish i could do that experiment, it would be fun to see the result!
sound interesting but it would be difficult since magnets are very brittle and would probably smash into each other and break.
It wont and you can tell by the way it is.
Very interesting. I kept waiting for the landing, reposition and launch again demonstrated. At some point the battery goes dead so how many jumps can it make?
Yeah, I was also wondering if the steel weight can be replaced by a battery or some other 'sensors' or cameras..?
It may be able to recharge the battery to some degree by harvesting energy from the impact
It's funny that people have been making this type of spring in Polybridge for years now. The so called "Diamond Spring", but it was almost always used for compressing something very fast. Rotated 90 degrees, and suddenly it's used for expanding something very fast.
I was wondering where I remember exactly the same design from! It is obviously lacking the "elastic carbon fiber arms" part, but exactly matches one of their earlier prototypes with the hinges.
the real question is is this legally a firearm
my fists are legally considered to be firearms
The Hog Rider is a fast ground troop with medium hit points, low damage, and the ability to jump over enemy Walls. He is unlocked from the Spell Valley (Arena 5). He is a quick building-targeting, melee troop with moderately high hitpoints and damage
@@crinjal_mrp vertasium is indeed a meme page.
I can relate hog rider to this video
Wonder how it jumps from sand, and how the compression characteristics of moondust would change the launch characteristics … perhaps a collapsible foot at the base would overcome soft ground without adding too much drag?
well if it's on a lunar surface, no drag, just a little bit extra weight to vehicle
ok
Yes....The first jump would be unaffected,providing you don't push it into the loose lunar regolith.Jumping out of a deep crater might be more difficult. Weight is critical so a small bladder of compressed air may impact its performance. I would love to see it scaled up and tested on the Moon.
Hhhh where do you even come up with these questions? Y'all are smart, gotta respect that
@River Stone The beauty of science is that it stands up to skepticism. “Scientists don't concentrate on what they know, which is considerable but also minuscule, but rather on what they don't know. The one big fact is that science traffics in ignorance, cultivates it, and is driven by it.” “Ignorance follows knowledge, not the other way around.”
I worked in the injection moulding industry as a technician and have operated machines with clamp forces and speeds far beyond what the pump and motor would normally be capable of. They relied on an accumulator, basically a pressure vessel that was ‘charged’ by the pump and motor in the idle time between cycles. Imagine if robots employed this principle… 🤔
A robot that walks using pneumatics as the source of energy for moving its limbs... It would have a tank for storing pressure, a compressor and valves directing air to the tank or straight to the limbs. During normal movement and when standing still, air pressure not needed for movement would be directed into the tank but when it needs to, it could release a bunch of pressure from the tank to, for example, jump. Or the pneumatic system could be used only for boosting the movements otherwise accomplished with electric motors when the robot needs to do more than just walk normally.
@@Kepe That’s exactly what I’m talking about. Except that nitrogen would be used rather than air. An accumulator would contain a nitrogen filled bag which can be compressed much more than air. Hydraulic fluid would be pumped into the accumulator which would compress the nitrogen filled bag allowing for much higher stored energy than with air. This is how the accumulators in an injection moulding machine work.
@@welshsteve2009 i think well pumps do something similar, but i think the compressed gas acts as more of a buffer to keep the pump from cycling constantly.
You'd need a very low friction fluid. It could work. But the simplicity of springs lends very well to scaling production.
@@SaintSaint The machines I ran pumped hydraulic fluid. The nitrogen in the accumulators can compress more efficiently than a spring and produce a more desirable force curve.
That is an incredibly detailed video into jumping and I love it. It would be amazing to see jumpers on the moon or mars as that is a highly efficient method of travel.🔥
One of the best videos in a while. The sand flea locking mechanism is just fascinating
Looking forward to the full scale one, I hope they're doing one!
I need to see a 10x version of this jumping... will be epic!
So there are these leg things, basically stilts, that strap onto your shoes and add about a foot and 8lbs of weight/height to you, and can enable you to jump around 9ft depending on your mass and run at very high speeds. The trick is a carbon fiber leaf spring in the back. They’re fun to use but take a lot of practice.
Give it a parachute and it can glide to its target.
You could say that this robot overtook everything else by... leaps and bounds
I'd love to see this type of robot device installed into the knees of one of those humanoid robots featured in the clips of this video. With programming, the more the motors would turn the springs thus compressing, you could alter the robots stance, lower and upper body position to compensate the energy exertion. Then boom, you have a leaping humanoid robot
They already have robots that can do flips. Boston dynamics has some, and has had them for years now. So this isnt that impressive. I would be more impressed if they taught robots how to use jet propulsion technology, so they can hover like a harrier jet
@@3rdreichball525 flips are one thing, but this isn't flipping. This could be a robot jumping vertically or leaping forward a good distance
this sort of thing also seems like it's probably going to be way, way better at returning energy for every single step, than electric motors would be able to. With that, you've really solved a good portion of battery power issues with those sorts of robots.
I was thinking about it, and it could be made in such a way that under normal operation, the spring is basically disconnected, but then when they want the extra jump power, it can lock and the motors would then compress the spring as it gets into jumping position and releases it.
I imagine that the timescale requirements of these humanoid robots doesn't allow for a long winding up periods - they have to perform rapid movements and it is not known what direction those movements are gonna be. Those robots are sensing the environment and depending on outside factors they decide how they will move.
I feel like this principle could be applied to competitive robot battles very effectively. The drawback being it'd take a long time to recharge the weapon if it missed, but if it hit, it would be devastating.
Nah the Robot is called the swarm, itd be round with like 8 of these around it. Then they just repeatedly jump into the other robot with barbed pikes attached the the end. If not destroyed its knocked over or slowed down enough by the jumper robots. The main machine then comes with a big hammer and just rapid fire swings on it. Worst case scenario, the pikes stick in, recharges then starts launching the other robot all over the place until it breaks
A crossbow?
A robot with a gun
We already use work multiplication, it's called ATP - we just can't release all of it in a single bound.
This could literally launch itself out of the gravity well of smaller solar system bodies, such as asteroids, or comets. Another useful application for mechanical launching could be lunar bases. Without an atmosphere, escaping rocket exhaust can accelerate dust close to escape velocity. This could have a sandblasting effect of structures great distances away from the launch point. If a vehicle could jump a significant height, before igniting traditional rocket engines, this could be reduced.
A great point! I was also thinking of this usage for pre-launch staging! If you're launching a rocket, you probably don't need/want the spring to be part of the launch vehicle. It's a little silly, but why not use a spring to start a rail gun launch? Rocket-powered dust would be very scary on an asteroid or even a moon. I never thought of that!
If possible, it sounds like a great idea for getting off the moon.
Great idea as long as no living organism is on board. Remember he said it produces 300g's! If you like your brain in your toes sure, but otherwise nah
@@Jacob-ft3oz well on the moon it wouldn’t be 300gs. When the Apollo astronauts lifted off the moon, they experienced around .33gs, they later said it felt like riding in an elevator. When astronauts lift off from earth they experience 3gs. Trained pilots can handle about about 9gs of sustained, positive upward acceleration, so on the moon the acceleration of this craft would still be deadly. On a smaller moon or asteroid with about 1/3-1/4 of the gravity of the moon, however, such acceleration would be tolerable.
Edit: sorry, this is wrong. The 0.33gs felt by the astronauts was during descent, not liftoff, where the g force would of course just be the acceleration of the spacecraft, with nothing to do with the gravity of the moon. It requires less velocity to escape the moon’s gravity well, so in that sense astronauts would be exposed to fewer Gs, but that is the only effect of the moon’s gravity on liftoff.
@@AvanaVana No, it's still 300g. Local gravity doesn't change the strength of the jump, the acceleration is the same.
I love this kind of stuff. These designs and discoveries that seem so miniscule and irrelevant are always my favourite thing. We all thought we knew springs, but here they are designing a new spring. I cannot wait to see how these change the future products
What a cool and inexpensive little device. Imagine the assistance they’ll be in moon exploration. Low shipping weight and build cost and the possibility of adapting them for different tasks. I can see hundreds of these little guys working in the regolith on the moon
If this were used in space though, the elastic would almost instantly dry out in the cold temperatures and so this wouldn’t work unless you insulated the contraption which would significantly reduce the power of this. It would also cause much resistance in acceleration.
Yes, but I think that it would eliminate the use of dead mass being used
That’s really neat and in some way it reminds me of a small high school project we had to do. My design was great as it was, but it lost a lot of kinetic energy that could have been utilized. When I came up with an extremely simple idea on how to utilize the kinetic energy, the efficiency increased by around a quarter. I see the same thing on this design. The carbon fiber “bows” slap each other at the end. All lost energy. A mechanism in the middle that takes the “hit” from the bows and redirects it towards the bottom would increase the energy efficiency . Whether the extra weight (you would need to add more dead weight on top as well) and complexity of the added mechanism would be worth it, I have no idea. Just something the design team of this awesome little robot could look into.
I think the bows banging into each other at the end is just the kinetic energy of some very light bits of carbon fiber moving sideways. A mechanism to turn that into a useful downward force at the end of the 9 millisecond takeoff would seem to be very complicated, but interesting.
I’m once again filled with knowledge I could never ever going to make use of in my life, and for that I am grateful.
you can think about this any time you see an animal jump and appreciate nature more
1:03 The way that cat goes from a cute fury little critter to a vicious predator is amazing.
Dang it would be cool to see the scaled up version! They should start a Kickstarter for it haha
it's stuff like this that makes me relieved. I'm always glad we can actually outperform biology instead of being limited by biomimicry since biology tends to be the best example we have.
We also outperform biology by having wheels
@@1248erik Still i'm glad i have legs and not wheels. Wheels are very restricted to its environment, while legs can adapt to its environment.
@@bartbroekhuizen5617 Hmm not really, wheels simply require a flat terrain, there is plenty of those in nature.
Some beetles curl up poop into a wheel and use it to move around, but it's a real mystery why no spherical body plans evolved, I think Richard Dawkins even published a paper on once.
@@mostm8589 Off course having both options is even better :).
@@1248erik again natural latex rubber comes to bite you in the ass.
I know we're talking about engineering, but nature's always going to nail you on the chemistry.
I knew about jumping robots, I didn't know they could get high too, how far technology has come.
Going the opposite direction with this design, I wonder how long a very efficient spring could deliver energy at a measured rate? Could it be a form of mechanical energy storage and delivery?
Ever heard of mechanical watches? Some could keep running for ~10 days or more..
@@supergps2000 Except the amount of energy stored in the winding spring of a mechanical watch is miniscule. I was thinking like a battery, and storing enough energy to power a car or bike or something.
The issue is that springs are under stress when they are compressed, so it would be either dangerous (imagine a battery exploding) or would deform the string over time. There's a reason why you should NEVER leave a bow strung, and why you should always check strung instrument before playing. The first one may snap, the second one is constantly deforming.
@@swbusby That's exactly why springs aren't great for storing large amounts of energy. Compared to the alternatives, their energy density is abysmal, they're heavy, and they're dangerous. Other mechanical energy storage systems, like flywheels and pneumatic pressure, have the same problems to various degrees. They have useful applications, but they almost always are moving something else. They quickly become inefficient when they have to store enough energy to move themselves, too.
That's a thing. They even used to make buses that were powered that way.
Lol those bots hitting them boxes was freaky asf 😆
I could imagine some sort of stored energy being used with a running robot. It would have to - store, release, store, release - with every running stride. To build such a reliable and consistent device would be a hug engineering challenge, though.
So time also equals power... Oh i get it... It's just like "SPECIAL BEAM CANNON"...
Some robots already does this with compliance, e.g. cassie/digit from agility robotics
@@benjackson6260 Literally what a killer usb does. A bunch of small capacitors.
Your PC's usb slots aren't putting out much energy at all. (5 volts at cirka 2 amps). But if you let a pc killer stay plugged in for long enough, you'll maximize the capacitors and trigger a sudden jolt of power at about 215 volts straight into the pc.
Low power over a long period of time = maximum power ejected at milliseconds.
@@LinusAkaPano yep... Actually have tried this on my principal when I was in school... Blew his pc up... Unfortunately he wasn't using it at the time... Otherwise would have been full payback... 😆😆😂
It takes time for each store, so step rate would be slow
I’m no scientist but I think you could use the contraption as feet for robots. Initially launch them with motor wind up, but upon landing from the jump restoring the energy into the spring.
I feel like you could do the same thing with regular robot spring feet.
like that's running
Repent and follow Jesus my friend! Repenting doesn't mean confessing your sins to others, but to stop doing them altogether. Belief in Messiah alone is not enough to get you into heaven - Matthew 7:21-23, John 3:3, John 3:36 (ESV is the best translation for John 3:36). Contemplate how the Roman empire fulfilled the role of the beast from the sea in Revelation 13. Revelation 17 confirms that it is in fact Rome. From this we can conclude that A) Jesus is the Son of God and can predict the future or make it happen, B) The world leaders/nations/governments etc have been conspiring together for the last 3000+ years to accomplish the religion of the Israelites C) History as we know it is fake. You don't really need to speculate though because you can start a relationship with God and have proof. Call on the name of Jesus and pray for Him to intervene in your life. - Revelation 3:20
Revelation 6 1st Seal: White horse = Roman Empire conquering nations under Trajan 98-117 AD & Gospel spreading rapidly. 2nd Seal: Red horse, bloody civil wars with 32 different Emperors, most killed by the sword. 185-284 AD 3rd Seal: Black horse, economic despair from high taxes to pay for wars, farmers stopped growing. 200-250 AD 4th Seal: Pale horse, 1/4th of Romans died from famine, pestilence; at one point 5,000 dying per day. 250-300 AD 5th Seal: Diocletian persecuted Smyrna church era saints for ten years, blood crying out for vengeance. 303-312 AD 6th Seal: Political upheaval in the declining Roman Empire while the leaders battled each other. 313-395 AD
Revelation 7 Sealing of 144,000, the saints, before trumpet war judgments, which led to the fall of the Roman Empire.
Revelation 8 1st Trumpet: Alaric and the Goths attacked from the north, the path of hail, and set it on fire. 400-410 AD 2nd Trumpet: Genseric and the Vandals attacked the seas and coastlands, the blood of sailors in water. 425-470 AD 3rd Trumpet: Attila and the Huns scourged the Danube, Rhine & Po rivers area, dead bodies made water bitter. 451 AD 4th Trumpet: Odoacer and the Heruli caused the last Western Emperor (sun), Senate (moon) to lose power. 476 AD With the Western Roman Emperor (restrainer of 2 Thes. 2) removed; the son of perdition Popes took power.
Revelation 9 Two woe judgments against the central 1/3rd and eastern 1/3rd of the Roman Empire. 612-1453 AD 5th Trumpet: Locust & scorpions point to Arabia, the rise of the Muslim army. Islam hides Gospel from Arabs. 612-762 AD 6th Trumpet: Turks released to attack Constantinople with large cannons (fire, smoke, brimstone). 1062-1453 AD
Revelation 10 The little book is the printed Bible, which was needed after the Dark Ages when Scriptures were banned by Popes.
Revelation 11 7th Trumpet: Martin Luther measured Roman Church; found that it’s an apostate church, not part of true temple. The two witnesses are the Scriptures and saints who proclaim the pure Gospel and testify against the antichrist Popes. Papal Church pronounced Christendom dead in 1514 AD. Silence for 3.5 years. Then Luther posted his 95 Thesis, which sparked the Protestant Reformation and brought the witnesses back to life. Millions of Catholics were saved.
Revelation 12 Satan used the Roman Empire to try to wipe out the early Church, Satan was cast down as the Empire collapsed.
Revelation 13 The antichrist beast Popes reigned in power 1,260 years, 538-1798, is the little horn of Daniel 7, son of perdition. The false prophet Jesuit Superior General rose to power from land (earth) of Vatican and has created many deceptions.
Revelation 14 Points to great harvest during the Protestant Reformation & wrath on Catholic countries who obey antichrist Pope.
Revelation 15 Overcoming saints victorious over the beast. Prelude to 7 vials and judgment on those who support Papal Rome.
Revelation 16 1st Vial: The foul sore of atheism was poured out on Catholic France, leaving them with no hope, led to revolution. 2nd Vial: The French Revolution started in 1793, killed 250,000, as France had obeyed the Pope and killed saints. 3rd Vial: The French Revolution spread to rural areas of France, where Protestants had been killed in river areas. 4th Vial: The bloody Napoleonic wars shed the blood of countries who had revered and obeyed the antichrist Pope. 5th Vial: Judgment on the seat of the beast. Papal States invaded in 1798, Pope imprisoned, removed from power. 6th Vial: The Turks vast domain dried up, they were only left with Turkey. They lost control of Palestine in 1917 AD, Israel became a nation again in 1948
No not really. 1 you'd have to land upright and this is basically rocket which land upsidedown without correction and 2 that is a massive amount of energy stored up and due to aerodynamic drag it will never have enough velocity coming back down to fully compress the spring even under perfect conditions.
@@FrancisR420 Tell me you missed the main point of the video without telling me you missed the main point of the video.
This reminds me of something I did back in high school. I'd take a rubber band and wrap it around a ballpoint pen, then pull the rubber band taught and allow the pen to slip out, shooting upwards as the rubber band released its stored energy. I didn't ever exactly measure how high it went, but I think it was launched at least 10 meters. Very entertaining.
"I did my PHD studying how much people learn from videos. Unfortunately it is shockingly little"
-Guy who makes mind blowing educational videos for a living
It's like 3 or 4 compound crossbows connected together and redirecting the energy's force axis!
Pretty smart!
U should try to make that it’s an amazing idea
From a seated position my big male German Shepherd dog could jump 10 feet in the air with no sign he was going to launch until he actually leapt, when I first saw him do this I thought I was imagining things then he did it over and over, this was indoors and what he was actually doing was catching and eating flies that had settled on the ceiling, our early Victorian house has 10 feet high ceilings you see. I observed him do this for some time and he never missed, he would also catch flies in flight using the same technique, he would watch the fly and when he could anticipate the fly's path through the air, up he'd go making adjustments as he went using his vision to intercept the fly perfectly. He could also catch rabbits in long grass using his ears, he could hear the rabbit moving in the grass then he'd leap 10 feet or more in the air above where he judged the rabbit to be, then with his head facing down and his ears fully extended he would come down homing in on the rabbit as he came, then with his paws he would fold the grass over the rabbit to make a cage to hold it and then go in with the teeth for the kill, I watched him do this in farmers fields when out walking and he could catch a rabbit every 2 minutes if I let him, we actually used to take sacks with us to collect the meat, which became dog food after pressure cooking it. That German Shepherd dog was the son of many great Champions and was my best in my lifetime dog/friend by far and I've had some great dogs, his name was Charlie and he's gone to doggie heaven these past 15 years and his body is buried beside my front gate where he spent so much of his time waiting for me to come home and now he waits for an eternity, that good and loyal dog and after 15 years I still think about him and miss him most days..
that's a great story. here, you look like an AI though.
you might want to write on a blog, not on the comments section...
1:55 Never knew condoms could pop like that!
If you make a 10 meter high robot that can jump 10 centimeter high, that could also be called the "World's Highest Jumping Robot"
But then it's just tall, not high. That small jumping robot would still be the highest, yours would (probably) be the tallest, although I'm sure there's taller robots that can jump higher than 10cm.
@@Lord_Juvens What's the difference between tall and high? Buildings are usually called high, not tall. People called tall. Is there any use of tall?
@@Sekir80 What? Based on his sentence it still wouldn't be the highest robot in the world. Tall means it's vertical measured length to compare heights and high means it's elevation from the ground. In this case the robot would be 10 centimeter higher during the jump but not 10 centimeter taller. Considering he defined how tall the robot would be, his sentence was just wrongly worded from the beginning.
@@Sekir80 So yeah there's plenty of use for tall, you'd never say a person is 180cm high. A person is 180cm tall. That goes for any object that is measurable.
@@Lord_Juvens check a dictionary 💚
Several of these could be put in parallel with timings offset as a compact unit to replicate an almost always ready muscle in a robot.
I love how intuitively designed it is! Simply amazing.
Veritasium: 300g is enough to kill every living creatures
Mystrium ant: hold my beer
Though it would not be a jump, this same design including a flywheel in addition to the spin would be DOPE. Could intermittently retention the spool if the trigger mechanism was redesigned, be used for gyroscope steering and potentially increase max flight distance?
You're thinking on the right track for a serious design (unlike the one presented with its rubber bands). Take a look at the MASCOT lander that was deployed as a part of the HYABUSA-2 mission to Ryugu. It's entire locomotion plan was basically a flywheel that stopped suddenly, causing the lander to hop up. It could also use this to make "mini-moves" to reposition/fix orientation. For actual space applications, CMGs are the only real way to perform mechanical jumps, as the rubber bands shown here are just silly.
@@choerm Flywheels may be a good alternative, but what do you have against rubber bands? Derek mentioned that latex rubber has an unusually high potential for storing energy per kilogram of material, so latex rubber bands seem like a pretty decent material choice for lightweight applications. Maybe not for a full size rover, but probably alright for several lightweight drones. And I’m sure the finished product will not use office-supply rubber bands but a specially manufactured latex rubber designed to fit the drone’s needs.
@Matthew Morycinski good point, I forgot about ambient temperature
@@diggoran Polymers degrade extremely quickly in space. Temperature fluctuations, radiation exposure, and vacuum off-gassing destroys pretty much every polymer (including rubber). There will never be rubber wheels, seals, or bands that last longer than the trip to get to the moon.
This world is rapidly passing away and I hope that you repent and take time to change before all out disaster occurs! Belief in messiah alone is not enough to grant you salvation - Matthew 7:21-23, John 3:3, John 3:36 (ESV is the best translation for John 3:36) if you believed in Messiah you would be following His commands as best as you could. If you are not a follower of Messiah I would highly recommend becoming one. Call on the name of Jesus and pray for Him to intervene in your life - Revelation 3:20.
Contemplate how the Roman Empire fulfilled the role of the beast from the sea in Revelation 13 over the course of 1260+ years. Revelation 17 confirms that the beast is in fact Rome. From this we can conclude that A) Jesus is the Son of God and can predict the future or make it happen, B) The world leaders/nations/governments etc have been conspiring together for the last 3000+ years going back to Babylon and before, C) History as we know it is fake. You don't really need to speculate once you start a relationship with God.
Can't get a response from God? Fasting can help increase your perception and prayer can help initiate events. God will ignore you if your prayer does not align with His purpose (James 4:3) or if you are approaching Him when "unclean" (Isaiah 1:15, Isaiah 59:2, Micah 3:4). Stop eating food sacrificed to idols (McDonald's, Wendy's etc) stop glorifying yourself on social media or making other images of yourself (Second Commandment), stop gossiping about other people, stop watching obscene content etc. Have a blessed day!
That's so fascinating! It's a beautiful masterpiece!
Absolutely ingenious. This could completely replace wheels and rovers in land operations on other planets.
Galagos never skips leg days 💪
by this definition a rocket jump isn't a jump my day is ruined
If you wanna be successful, you most take responsibility for your emotions, not place the blame on others. In addition to make you feel more guilty about your faults, pointing the finger at others will only serve to increase your sense of personal accountability. There's always a risk in every investment, yet people still invest and succeed. You most look outward if you wanna be successful in life.
Sure! Is a better way to counter this foreseen inflation, because all this wars everywhere are politics.
Living in one's "comfort zone" is a contributing cause to the plight of young people.
Fear is a total failure when you give up Ambitiousness; and Success is a game of dice, you throw your $coin while your investment decides your goal.
@@samiraabubakar2963 they said when you invest little money you earn big,
Can't even imagine how it is possible
7:47 wouldn't things like froghoppers count as work multiplication? they bend their exoskeletons to use them as a spring. similarly, the trap-jaw ant bends its head outwards to use it as a spring. In both cases, the spring is powering the jump.
As far as I know, in those two cases, they use the spring energy instantaneously, sort of like squatting before a jump. Work multiplication requires building up energy, and restraining from using it during the build up
maybe, theres also club mantis shrimp which deform their exoskeleton and use a locking mechanism to achieve their huge amounts of force
@@eoghanley I get what you are saying about storing work, but I don't think it's like squatting for a jump. Muscles are not used to jump, they are used to load up a spring which is then locked by a latch. So they are storing energy and releasing energy that their muscles alone wouldn't be able to exert. It's not just squatting and then using muscles to jump, they are literally spring-loaded. It seems some planthoppers bend their exoskeleton to use as a spring.
For the trap-jaw ant, the ant's "skull" itself is bending like a bow. The muscles aren't just shutting the jaws, but tensioning a bow.
If those don't work, what about springtails? they have spring-loaded furcula to perform some of the fastest jumps.
Unless we mean here that a slingshot doesn't count as work multiplication, but then, it seems a bit of a technicality. One can imagine a linear motor instead of a rotational one, would the linear motor not count? both are storing the same amount of energy and releasing it.
@@facestealer1040 yea, I was thinking about these kinds of things. But the task was specifically about jumping (which is a technicality, I know), so I was thinking of things like springtails, planthoppers and technically trap-jaw ants, which sometimes use their jaws to quickly propel themselves away from danger.
@@jesuizanmich The idea is that the work multiplication occurs by applying a force in multiple “strokes”. While the frog hopper tensions both its exoskeleton and muscles to jump, the muscles only perform one stroke during which both they and the exoskeleton are tensioned. Work multiplication would occur if the froghopper tensioned and released its muscles multiple times to repeatedly add additional tension to the exoskeleton, sort of like a ratchet strap. If the froghopper could perform this repeated ratcheting to add more and more tension to its exoskeleton, it would be able to store much more energy in the same frame size relative to what can be stored in a single stroke. Work multiplication grants you a much higher energy density than can be achieved with what nature has developed.
A slingshot would not count as work multiplication as the tensioning is performed in a single drawing motion. One could imagine a slingshot where the payload is only drawn a short distance back, but the launching mechanism is tightened by a rotational motor to add more and more tension to the slingshot in a smaller frame. The size of the slingshot is greatly decreased through work multiplication, though the same amount of energy could be stored. A linear motor-drawn slingshot (essentially a standard slingshot) requires the frame to be much larger so that it can perform the draw back in a single stroke and would not be considered work multiplication. It’s definitely a technicality but when it comes to energy density it makes a big difference.
On a chemical level, natural musculature works similarly to the Jumper's motor slowly storing energy in the spring. The fibers are loaded with ATP and then the energy can be quickly released mechanically. Muscles are unidirectional chemical springs. Muscles are biochemical springs that fire asymmetrically.
Would so love to work on this project! Already have an idea to try out. Physics students weren’t *nearly* as cool in the late 80’s so I chose a different curriculum. Gawd, I need a 3D printer! Ugh!
Have you tried…. Building a curved jig and laminate the legs so a straight, laminated piece of carbon fiber has energy storage in it already. A spacer would need to likely be added so the motorized tensioning system could still be used. Idea comes from my interest in laminated recurve bows. Really cool project!
What?!?! Physics students were always cool. At least to me.
@@vectoralphaSec Attended large school best known for Engineering. Including Master’s, there were about 32,000 students in attendance at the time. There was a physics class for non-engineers, a physics class for engineers and a physics class for those on the path to a Physics degree. There were about 11 of us in that class. Have you ever watched “Revenge of the Nerds”? These guys weren’t cool enough for that movie. (Yes, no females.)
Second idea … maybe come up with a way to offset the hinges of the top and bottom carbon fiber legs in such a way so that the rocket has some spin and loses less energy through “the wiggles”. Anyone wanna send me a 3D printer? :P