If the chain gets pulled faster does the chain go higher? If so, then does gravity cause the entire chain to accelerate at the same rate or what? For example, of H0 is 100 meters above the ground. And H1 is the ground, how fast is the chain traveling when it hits the ground? If the chain accelerates slower than it should, is the slowing down translated Into the force that raises the height of the chain? Thank you!
This whole thing has been so much fun! Kind of sad it's over to be honest. I like your description of the chain on a rod experiment (which is a shame otherwise we could have kept the videos going!). Good point about the simulations. I was actually going to add another cautionary point about them: publication bias. Like maybe quite a few people were trying to creat the fountain in simulation but only 2 or 3 were successful and so those are the only ones we heard about. Maybe other sims showed no fountain but they were never shared. And don't send me any money, just add it to #teamseas.
Now I need to find the time to make a video on why the direct down wind faster than wind explanation made by Derek is completely wrong. I'm just to busy at the moment but I will find the time to explain why energy storage is what allows that vehicle to exceed wind speed so it will be for a limited amount of time and they did not run the experiment long enough to see how vehicle will slow down below wind speed as soon as the stored energy is used up.
This "rivalry" was very enjoyable to follow. Many people (including me) got repeatedly convinced of both of your theories because you both presented them really well and made sure to test them as accurately as possible. I can't recall ever seeing the scientific process playing out so beautifully in public before.
Imagine if politics was like this. I actually leaned something that I would have never took the time to learn just because of great communication and collaboration. While fully explaining each other’s point of view and Leaving it open for new discovery. Thank you.
4:28 "it was never about who wins" this right here is how you know these two are really trying to add to science. if someone can convince the other in the scientific world, everyone wins. Thank you two for showing the scientific method so purely (and in an entertaining way)
This whole series was honestly so good and I'm getting 'old youtube' vibes. It's been so long since we've had videos that could only exist HERE. I hope that you guys have planted a seed in some people's heads so that we see more. I'm seriously excited!
i'd still love it if they could host their videos on odyssee, the platform is turning into a STEM hub. i'd rather see youtube fall into the bottomless pit of political content.
@@TheNinthGeneration1 I know that any coincidence or fun fact, relevant or not that is in favor of climate change "global warming" theory, proves it without discussion according to "scientists". Like at San Bernandino recently, maybe...
Medhi, this video is absolutely wonderful. This challenge just may have done a great service to mankind, at this terrible point where people act like their guesses/beliefs are a match against reasoning and experimentation. A definite win for science. Love your channel.
One can and should have their guesses and beliefs, nothing wrong with defending them, but one must also be able to change their point of view upon being exposed to new evidence. That's what most people lack, the ability to admit they were wrong
"Because it was never about who wins, it was about what is scientific explanation" Medhi, my opinion of you has gone even higher. I commend your integrity.
That’s the beauty of science. It’s not the pursuit of glory, but the pursuit of truth. And even when proved wrong, a scientist can take joy in knowing that the truth has been found.
@@michaelimbesi2314 Not all scientists are like Medhi. Just consider how many books have been written where this has been presented as proof en.wikipedia.org/wiki/Piltdown_Man
Except when getting published in a scientific journal, where it means like 3 randomly selected people skimmed your paper on their 8 minute lunch break and and it averaged a score of 'eh..fine'
Admitting you were wrong in public is never an easy thing. Great job Medhi for having the guts to concede defeat and lose gracefully. You've embodied the scientific spirit throughout this exchange, and set a great example for everyone who's followed these videos. You've helped educate us in science, but also in sportsmanship and how to conduct an honest debate. We need more of this attitude on the internet!
This whole series is fundamental research process of old-school science "theory proving" it's nearly forgotten/overlooked nowadays because of all the tech assisted methods. It's good to see some things never change when it comes to science 🖤
Another good thing about questioning physics like this, is that you end up with a much more in-depth explanation of what's happening, which allows you to apply it to more complex systems as you really understand what's happening. And, we've found out it's really two things happening. It's the interaction of the steady state loop acting more rigidly, which allows for the upward force to move the loop upwards as a whole.
And I definitely think Medhi's idea to wrap up with a tangent is a good one... I believe just by watching the video on the rod that this is the exact same effect, evident by the pulsing in the loop. Make it happen I say... We're probing the edges of the universe... Certainly a few beads won't be the undoing 🤣
@@MadScientist267 well we almost completely broke physics using an oven one time. Scientists trying to figure out why things glow and how to measure the light coming off of objects. They built an oven with a small pinhole to get light with specific characteristics. There were 2 competing equations that each explained different parts of the problem but blew up to infinity at other inputs. And then they invented Quantum Physics.
I completely agree, even though Steve's original video was clear and ultimately more or less right, if I'd only watched that video and nothing else I would never have e learnt even 10% of what I have given all the frivolities.
Imagine this turning into a series where Mehdi and Steve Mould, or maybe even other science channels, challange eachother on something different every season to bring an explanation to a phenomena each presenting their's with their own style.
Thank god this is over, I've been getting so much whiplash from changing what I believed was the right answer. You guys do such a good job at explaining things and making your points I love it
"It was never about who wins. It was about what is the right scientific explanation for a scientific problem" "I lost a bet, but it was a win for science" - Truer words have never been spoken.
@@Tyhytrtyyuu 1 - that's not new. That's been used for nearly a century if not more. 2 - stop spamming. That's not how you show your talent or skills. Spamming a comment section of a real engineer for clicks is only going to annoy everyone who sees it. I appreciate your interest in science and technology but the time and place to share your videos is not here.
@@Tundra1428 true, there can never be a debate if the debate is censored... although there is this publication in the British Medical Journal. th-cam.com/video/oaDo4ozr5Io/w-d-xo.html
Props for being faithful to the scientific method by being willing to change your mind in light of new evidence. This whole thing has been the an incredibly good example of how science is meant to work and was incredibly entertaining and heart warming to boot. Cheers :)
It seems as though both hypotheses contribute to the effect, but Steve’s extra force is what is required to have the height of the fountain rise ever higher in reference to the bottom of the container. Thanks to the both of you for your work and dedication to seeking a solution.
No. The increasing height of the fountain is the magnitude of the acceleration of the falling chain expressing itself. Nothing more. No extra force. Stabilize the acceleration and the height stabilizes.
"It does not matter who wins." Yes, if only more of us would embrace this science would progress more rapidly. Thank you both for putting the advancement of science above personal gain...
Pretty sure science is already mostly about this. As for politics, may I present technocracy. Its government, but with science at the top instead of failed scummy lawyers.
Really amazing to see this play out, and for a common conclusion to be found! Not for success, but science. I only wish this friendly, welcoming way of approach could or would be applied to all areas in life. Unforunately, we all have fallen to bias and wanting to be "right" at some point in our lives. Sportsmanship like this certainly makes the world a better place for everybody. What a ride!
WOW! It's not often that true and fair (and intensely grappled) science gets settled out and documented this well! It's so encouraging to see the scientific method wielded by honest minds. Thanks, guys!
There's that saying, and I forget who it's attributed to, but basically: if you believe something, you should try your best to disprove it. Telling Steve Mould to do a test that ultimately proved you wrong is the perfect example of this :)
More importantly, it adds robustness to the theory. Just like aircraft investigations rarely points who's going to jail but provides a lot of recommendations for mistakes to not ever happen again (or at least mitigated). Makes flights safer. Imagine if it's just about winning and losing. 😂 We'll just be finding out who makes the worst planes.
It dosent matter if you ever actually believed that you were correct or not, the best part about this video to me (other than Team Seas of course) is that you gave the best example ever of how to loose a bet! Getting angry, upset, or bitter about losing anything can only stand to make that loss worse for yourself by everyone seeing how you deal with a blow to the ego. By realizing your own error, acknowledging that and changing the way you see things is such an honorable way to go about it that it dosent even matter that you were wrong in the first place! I hope more people can adopt this mindset when competing with others.
I've really enjoyed this "rivalry". You and Steve are both great at explaining things, and though I was convinced by Steve pretty much right away, I still loved all the videos from both of you. Congrats on learning something new, and on teaching us all along the way.
I have one minor thing to add. It's not mere loops - look carefully at the chain fountain after it has built up some height. In particular, if you watch the staircase from Steve's video ( 2:36 in this video) in slow motion, you can see that with each turn it begins building up an sinusoid. The tension and bend radius have to be sufficient for this to occur. The bends of each turn cannot "collapse" quickly enough, so they begin to form a semi-rigid structure. Each time a bend is pulled up the fountain, the force acts to push the semi-rigid structure high enough into the air that the bottom of the structure is touching the surface. In the case of the rod ( 8:51 in your video), it is clear that this force need not be constant, but instead it can act periodically relative to each bend and maintain the fountain. Indeed, you can watch the end of the rod in slo-mo again and see the impulse each time the chain crosses over the rod.
this kind of youtube community is restoring my faith in humanity. Damn, i was almost convinced to forget about university cause i dont want the 9-5 grind but grinding with things like this is definitely something im willing to get educated for.
this is the most educational "TH-cam Drama" ever! unlike the others and their bullsht craps, respect you both as you guys respect each other! this should be the way of arguing stuff "with sense" good job lads, love it!
This rivalry rekindled my interest in the natural world. I discussed it with my friends and, just, wow. I dunno. I loved all of this. Thanks to both of you for putting science and the truth of how nature works above yourselves!
Thanks for the simple and straight forward explanations Mehdi. I find them easier to understand being explained in simple terms. I think sometimes the more closely we examine something the less we see and more confusing it gets. Stepping back and taking a broader view is what I prefer to do. Thank you both, Steve and Mehdi for your efforts. Steven.
I just had the realisation that this little back and forth is perfect for showing in schools to demonstrate the scientific method and peer review, while also being delivered in a way entertaining (hopefully) for kids moreso than the average scientific discovery which nowadays grow ever more complex. If I become a teacher... Well I'm a comp sci student so it would be computing I'd teach... But if I ever act as a physics cover teacher, I'd definitely put on this playlist and do things like ask the class which side they're on after each video, or any issues they might see with certain tests such as the limitations of the 2d example.
I'm really proud of you for admitting you were wrong gracefully. I didn't watch this video for a long time, because I was convinced beyond any doubt that Steve was right, and I was worried you were going to deny it. I'm glad I watched it. :)
I love how we're living in the middle of the 2021 "gravity" era We know what happens but don't quite understand the underlying cause to the result. And on top of this, we have two big names going back and forth to come to a conclusion. I have faith in humanity!
@@yung-megafone I hope to be on the front line, but spots like those are rightfully reserved for the people that have loved physics and have studied it their whole lives. I have dreams though. I'm young, I'm an electrician right now but I'd like for as soon as possible to use my career to fund my scientific endeavors.
@@yung-megafone there will be 6G towers because every decade there is a faster wifi. Plus there will be more karens complaining that wifi causes cancer on the internet
I love you Mehdi! Thanks for doing such a great job and challenging Steve Mould to better himself and his explanations and experiments. In the end, you both win. Everyone gets more knowledge, and the Oceans get cleaner! Fantastic work.
It was fantastic to watch this back and forth after it all got settled. This was extremely entertaining. Thanks for challenging the paper, Mehdi! It shows how important it is to make sure the experiments are refined enough.
On the test being fed by the hung chain, how about looping the chain around it like an axle and spinning the feeder axle in the same direction as the chain feeding off of it, somewhat like you did with the hole saw? Probably a good idea to use glass as the feed axle to reduce friction and loop the chain loosely so RPM doesnt affect too easily.
You're responses, humor, and tact during this whole debate was wonderful! I hope when I grow up I ave the grace, respect and passion you have for science.
I was getting frustrated that Steve also said that there was no "lever effect" when doing the chain in rod test, because you can clearly see the "lever effect" created by the chain and how it pushes it up, but now I am happy to see that they noticed it, really nice vids
this effect kinda reminds me of the whip, the way they throw the whip and then pull it back to apply maximum force at the tip which is equivalend to the bottom of the chain here
The idea about the spinning chain being a lever effect was my initial interpretation, it explains why the fountain increases in bursts in the video as the lever effect is most effective when the top of the chain is the bit being lifted.
Great demonstration of science in action. Different viewpoints duking it out through experiment and following the evidence, regardless of initial bias. Both of your channels are among the best practical science channels around.
That was my only complaint is the simulations, simulations are good for explaining and teaching, but not for a 1:1 of the world because you have to keep tinkering on it to make it work
It's convenient in showing what you mean but also risky in that it's difficult to remove confirmation bias when you are inputting the variables you think are involved yourself.
Simulations are just applications of physics and assumptions. Good luck doing modern science without simulations to test agreement of theory with observations.
@@carlbennett2417 Luck will be very much needed. Ahh. We get so spoiled by technology! Makes you appreciate the giants today's scientists are now standing on the shoulders of! Just brain and paper back then. 😳
I've been following this since the beginning. You're both a credit to science. Massive props for accepting 'defeat' with grace. It never mattered WHO was right, only that you found out WHAT was right.
thinking if this is just centrifugal force acting up on the edges of the string / linked beads and the downward motion tips it down, forcing the other segments that are being pulled to rise up, and doesn't actually require a surface to force itself upon I'm pretty sure this same behavior also happens irl when pulling a rope really fast through a sharp 90 degree turn Don't have the credentials to back this up though... Just pure speculation
@@cortexpe9122 Centripetal force isn't real since it's an inertial force and only appears when viewd from a rotating frame of reference. Centripetal force is the force that allows an object to curve and you should always talk about things moving with curves paths in terms of centripetal force for these reasons.
i don't see how Medhi is wrong tho. By all meane, steve just moved the goal point. Yes we see a kickback force etc. But medhi has already proven and shown by the reason it rise is not due to this kickback force. the kickback force merely helps but it not required in the equation. It's like saying you need a ground/floor for a chemical to explode because when it's in confined space, it's more destructive. Even if confinment space help, the reason an explosion occured is the chemical.
It was really fun seeing y'all going back and forth on this. I think this will be a good resource for teachers trying to show students what the scientific process looks like beyond the scope of a experiment.
Great job to both of you to keep us so much engaging with the concepts and brainstorming. I was wondering how it will be if the simulation is carried out in a Zero-g environment.
i love the brilliance of your calm and stead fast reasoning sir. but in all this it takes about 3-5 black/white boards just to put a proper equation down for the effect you two are describing
The surface feeds energy into the system to allow it to rise, without the surface, it'll still arc but the arc will drop. So to maintain the arc, even have it grow, you need a surface to out that extra energy into it, neat
It the surface is not moving, there is no way it can deliver energy to the chain. Force X Distance = Work (or Energy). Zero distance means zero energy.
@@bobwhite137 there is no "work" since there is no movement. But when you try something, like jumping, you can only gain height if you have a solid body that can absorb your kinetic energy and not move. This allows you to gain a lot of height. Without this surface you gain no movement, you simply swing your legs. So the surface "reflects" the energy. The chain pushes against the solid surface, as a result due to the solid surfaces high mass and weight, it reflects that energy back into the chain. Walking on soft materials is more difficult, requires us to expend more energy because the soft ground "absorbs" more than reflects. So youre completely right there is no work being done by the ground, it's solid, but the energy of the chain isn't lost on a soft ground, it's kept in the chain as its reflected back when the chain rises one end, and drops the other. Or some shit I'm losing interest
That's why science is for grown up kids. You need the kid inside to ask questions and pursue the truth, but you need to be a man to admit you were wrong. It takes some heavy balls and maturity. Good job both of you for teaching the internet the grown up part!
Unless we stop exporting plastic waste for "recycling", there is no point in removing trash at a rate slower than we are "recycling" it. It should be made illegal to export plastic waste to unscrupulous processors abroad who get paid for recycling, and then burn or dump the waste.
@@O5MO Plastics have many benefits and can be much better than their alternatives given that the plastic waste is handled properly. As shown in the original plastic collection boat video, large amount of plastic waste is caused by lack of proper waste retrieval, not western plastic export. Also, we shouldn't treat other countries like children, but rather expect them to not allow domestic companies to import trash unless they actually conduct proper waste management.
Hey Mehdi! Another factor would be the centrifugal force, because where the chain fountain bends, it will travel on a semi-circular path. You can more or less easily use the a = (v^2)/r equasion, and with the centripetal acc. you can calculate the force. It would be an interesting feature including it in the simulation!
Mehdi! Centrifugal force, at the point of the arc from rest to rising would cause enough pressure to be measurable, as Steve's video demonstrates. Do not give up yet, there is no magical push from the table!
This is exactly the idea that sprung into my mind last week. If the chain forms a circle, the forces around the rotational axis cancel each other out. Is the circle cut in half (the bottom half is removed) then the axis of rotation sees only upwards pulling forces, and the axis shifts upwards until it meets enough force of the weight of the chain, where it then will find an equilibrium.
This is beautiful! This is what science is all about. We need more collaboration like this. I believe Steve has earned the naming rights of The Mould Effect.
Such a good video. I've been following the debate and really love the way its been handled by both sides. Fantastic stuff, and a strong lesson in critical thinking and scientific skepticism for all.
0.36N is equivalent to the gravity pulling down just ~36.7 grams of mass. Also it sort of doesn't make sense for the length of the chain to influence that lever effect strength. It was still supposed to only be the speed of the chain that influences that, not the length of the chain itself, and especially in a test where the acceleration is from an electric motor spooling the chain, not the gravity pulling it down...
Yeah, I'm still pretty sure that his explanation is the reason for the mould effect and that this "lever force" just keeps the fountain at a stable height relative to the coiled chain. Rather than following the end of the chain to the ground. I also feel like he already knows this and just doesn't want to make a fourth video on the subject.
@@EmK02 N is not mass, it's a force. Although, because gravity is a force that can constantly accelerate mass at a specific rate (9,8m/s^2), you can easily calculate how much of this force exactly is pulling on a specific amount of mass on the Earth's surface, and that would be 1N being equal to the force of gravity pulling around 102 grams of mass at Earth's surface.
All you had to do was to put the chain on a balloon surface, that way you can actually see the chain pushing down on the surface. Maybe in slow motion to analyze it better
Thanks for your support of science, and the oceans! One thing I should point out. Most of the garbage in the oceans isn't from people throwing garbage in rivers and waterways. It's garbage thrown in streets and even garbage cans. Garbage in streets is washed into rivers & waterways, and low-density garbage (like plastic bags) in garbage cans can blow away from the can, the truck, the dump, etc. So don't think you're innocent just because you don't throw trash in rivers. The real way to help us to reduce consumption of single-use plastics.
So my question is where the garbage will go after being pulled out of the ocean. Recycling will be very expensive, and a landfill isn't a ton better than where it is. Perhaps while we raise money for this project, we can also find a way to safely dispose of everything? Side note: Will our next fundraiser be to remove space junk from LEO?
A landfill is a ton better than where it is. The problem isn't that it looks ugly - it's that the plastic is having effects on the environment (such as filling plankton with microplastics and killing them). Putting them in a landfill takes them out of the environment.
I think the measured push-back is “leakage” from the energy building up in the wave accumulating in the material stream formed by the chain siphon. As the wave pulls the chain in anew direction, the stiffness of the chain communicates a bit of the growing kinetic energy to the surface, proportional to the stiffness of the chain, but this isn’t what causes the fountain, but actually the other way round. It’s clear there are waves traveling in the chain, the largest at the top and a smaller wave train in the drop; your simple loop on the drill is the simplest case and shows the “stiffening” effect of the kinetic energy in the chain. If you examine a stream of water streaming in an arc, you might be surprised to see the upstream section change when you interfere with the downstream part. Here, In similar fashion, energy is accumulating in the fountain, provided by the potential energy of the chain as it accelerates by gravity and the siphon. The integrity and stiffness of the chain provides enough structure to create the siphon, and also contain the standing wave, any less and it would simply break and dribble to the floor. There is eventually equilibrium between the energy loss due to friction and the siphons acceleration, so the wave does not grow forever. It might be valuable to test ball chains with different ball-to-ball angular flexibility to see how this constraint effects the wave propagation, but i suspect almost all variations of chain (ball weight, distance, etc) will behave similarly but w different resonance. I guess a longer falling distance and a lighter chain, but heavy enough to flow well, will reveal these wave mechanics more easily, maybe even see wave packets flowing upstream. (Edit: pls make and launch some bigger loop of chain! That’s was cool!)
I think you're right! It's clearly a wave. I think the wave is being reflected where the chain touches the bottom of the container or the loop it's over. Most of it's energy is being reflected back down the chain but some of it creates the force being measured. Anyway, the reflected energy builds the amplitude of the wave because the medium the wave is traversing, the chain, is moving as fast as the wave. So, it's not really a standing wave, but actually a traveling wave. However, since the medium the wave is traveling through is moving the same speed as the wave it appears stationary to us and more importantly it's stationary relative to the reflection point (bottom of container or rod it's looped over) this results in the reflected energy causing the amplitude to build. The wave is reflected due to impedance mismatch where the chain touches something.
@@stefanl5183 glad you agree! it’s a cool thing that waves like this propagate upstream. You can see it in traffic. More so, a wave train actually moves faster than the individual waves. I think the large lobe at the top could grow and even crash given the right conditions.
Hello everyone! If you like to support #TeamSeas but can't do through TH-cam, then go straight to TeamSeas.org
Joke
1st
wkwkwkkw :v
عامو ایقد حرص نخور
If the chain gets pulled faster does the chain go higher? If so, then does gravity cause the entire chain to accelerate at the same rate or what? For example, of H0 is 100 meters above the ground. And H1 is the ground, how fast is the chain traveling when it hits the ground? If the chain accelerates slower than it should, is the slowing down translated Into the force that raises the height of the chain? Thank you!
This whole thing has been so much fun! Kind of sad it's over to be honest. I like your description of the chain on a rod experiment (which is a shame otherwise we could have kept the videos going!). Good point about the simulations. I was actually going to add another cautionary point about them: publication bias. Like maybe quite a few people were trying to creat the fountain in simulation but only 2 or 3 were successful and so those are the only ones we heard about. Maybe other sims showed no fountain but they were never shared. And don't send me any money, just add it to #teamseas.
Also sad this is over… What an entertaining and educating series it was! Thanks guys
This is really nice to say!! Well done Steve
So when you'll be giving 10,000 Canadian Cent?
Find someone else who doesn't agree with you. We need this :)
Now I need to find the time to make a video on why the direct down wind faster than wind explanation made by Derek is completely wrong. I'm just to busy at the moment but I will find the time to explain why energy storage is what allows that vehicle to exceed wind speed so it will be for a limited amount of time and they did not run the experiment long enough to see how vehicle will slow down below wind speed as soon as the stored energy is used up.
This "rivalry" was very enjoyable to follow. Many people (including me) got repeatedly convinced of both of your theories because you both presented them really well and made sure to test them as accurately as possible.
I can't recall ever seeing the scientific process playing out so beautifully in public before.
10$
mark rober just start this trend and now evrybody do it
So true!
Your last sentence, Jason, is such a fantastic statement and testament to how amazing this series has been for everyone and the record.
@@felixpaiement2582 and veritasium was doing it with the faster than wind car.
Imagine if politics was like this. I actually leaned something that I would have never took the time to learn just because of great communication and collaboration. While fully explaining each other’s point of view and Leaving it open for new discovery. Thank you.
politics isnt about learning.. its about scaring people into believing your side of things.. its all about control and fear.. much like religion is
@@Dranex11 that and money. Scare tactics used against people for big corps gain
Proving points with simulations would help as well
Nah, much better to just talk shit about the other side, makes you instantly win the argument.
Sadly there isnt really an objective truth to be discovered in politics.
4:28 "it was never about who wins" this right here is how you know these two are really trying to add to science. if someone can convince the other in the scientific world, everyone wins. Thank you two for showing the scientific method so purely (and in an entertaining way)
Sounds like excuses
GAGAGAGAGAGA!!! I want to cut my toenails... NEVER! I am the feet TH-camr. Thanks for being a fan, dear pv
@@turolretar yeah for the 100 busk. electro booms entire channel is about education and self referential humor
ok
The winner leaves with perhaps a better understanding of what he or she already knew... but the 'loser' is the real winner, gaining something new!
This whole series was honestly so good and I'm getting 'old youtube' vibes. It's been so long since we've had videos that could only exist HERE. I hope that you guys have planted a seed in some people's heads so that we see more. I'm seriously excited!
i'd still love it if they could host their videos on odyssee, the platform is turning into a STEM hub. i'd rather see youtube fall into the bottomless pit of political content.
New technology for electric power generationth-cam.com/video/xc2V2BS_Fng/w-d-xo.html is on testing with Jugaad spare
Old TH-cam indeed. When drinking a gallon of milk was the suspect of vomitous reactions and subsequently proven without a shadow of a doubt.
RIP video responses
At the same time, this very much feels like it's a new TH-cam.
This whole debate is a master-class in how to have a civilized debate and disagreement without it turning nasty. Well done to both of you.
About global warming effect for climate change there is no disagreement or debate, just propaganda, and exclusion of any contradiction.
@Gibbon lol ever visit any hood or ghetto?
@@yuser4440 you do know that the first people to find evidence of climate change was an oil company who covered it up, right?
@@TheNinthGeneration1 I know that any coincidence or fun fact, relevant or not that is in favor of climate change "global warming" theory, proves it without discussion according to "scientists". Like at San Bernandino recently, maybe...
"I lost the bet but it was a win for science " God i love this community. It has been a great journey
I don't know what I love more: Science or its true adepts
Einstein i love this community*
@@ruffusgoodman4137 both. both are good.
The real question is what happens when you apply high voltage through a Mould Fountain? Does it make a Mehdi Fountain?
yo go test it and then name it after mehdi
you'll need a very long chain with a very long wire
@@NerdyCatCoffeeee
Wireless
@@Bassotronics sure. whatever
I wouldn't mind seeing a high frequency, high voltage source with a terminal close to the chain so it arcs to the metal balls as they go flying past
Medhi, this video is absolutely wonderful. This challenge just may have done a great service to mankind, at this terrible point where people act like their guesses/beliefs are a match against reasoning and experimentation. A definite win for science.
Love your channel.
One can and should have their guesses and beliefs, nothing wrong with defending them, but one must also be able to change their point of view upon being exposed to new evidence. That's what most people lack, the ability to admit they were wrong
"Because it was never about who wins, it was about what is scientific explanation"
Medhi, my opinion of you has gone even higher. I commend your integrity.
That’s the beauty of science. It’s not the pursuit of glory, but the pursuit of truth. And even when proved wrong, a scientist can take joy in knowing that the truth has been found.
@@michaelimbesi2314 Exactly! That joy of "Well look at that, I was wrong and isn't the reason why fascinating?"
@@michaelimbesi2314 Not all scientists are like Medhi. Just consider how many books have been written where this has been presented as proof en.wikipedia.org/wiki/Piltdown_Man
This is "peer review". A process that makes science so robust.
Except when getting published in a scientific journal, where it means like 3 randomly selected people skimmed your paper on their 8 minute lunch break and and it averaged a score of 'eh..fine'
@@ericpenrose3649 And journal takes big buck for publishing and that bleak review.
Was that a pun on the thumbnail?
No. The "peer review" here gives monetary benefits to the people involved. Most science just uses professors as no payed slave labour to peer review 😭
Sometimes it's a circle jerk and very anti science. (Dogma)(keep funding)
Admitting you were wrong in public is never an easy thing. Great job Medhi for having the guts to concede defeat and lose gracefully. You've embodied the scientific spirit throughout this exchange, and set a great example for everyone who's followed these videos. You've helped educate us in science, but also in sportsmanship and how to conduct an honest debate. We need more of this attitude on the internet!
@Mushieman Well, it wasn't just one video. It was a very big back-and-forth with a lot of different experiments going on.
Actually, it's always an easy thing. YOU'RE WRONG
It's easy as long as you come at with a clear possiblity that you could be wrong, if not then yes it would be hard for many.
This whole series is fundamental research process of old-school science "theory proving" it's nearly forgotten/overlooked nowadays because of all the tech assisted methods. It's good to see some things never change when it comes to science 🖤
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Yeah because new school science is "someone said it so itbmust be true"
Another good thing about questioning physics like this, is that you end up with a much more in-depth explanation of what's happening, which allows you to apply it to more complex systems as you really understand what's happening.
And, we've found out it's really two things happening. It's the interaction of the steady state loop acting more rigidly, which allows for the upward force to move the loop upwards as a whole.
And I definitely think Medhi's idea to wrap up with a tangent is a good one...
I believe just by watching the video on the rod that this is the exact same effect, evident by the pulsing in the loop.
Make it happen I say... We're probing the edges of the universe... Certainly a few beads won't be the undoing 🤣
@@MadScientist267 well we almost completely broke physics using an oven one time. Scientists trying to figure out why things glow and how to measure the light coming off of objects. They built an oven with a small pinhole to get light with specific characteristics. There were 2 competing equations that each explained different parts of the problem but blew up to infinity at other inputs.
And then they invented Quantum Physics.
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I completely agree, even though Steve's original video was clear and ultimately more or less right, if I'd only watched that video and nothing else I would never have e learnt even 10% of what I have given all the frivolities.
TBH, it seems like both Steve and Mehdi were right. They focused on different forces causing the phenomenon... but the answer was: both.
Imagine this turning into a series where Mehdi and Steve Mould, or maybe even other science channels, challange eachother on something different every season to bring an explanation to a phenomena each presenting their's with their own style.
11:21 this transition/effect was really well done. You really got me to double take and rewind just to watch it again.
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Yas
That alone was art.
Yes! I was sure someone would have commented on it and I'm right! I did a double take too.
Thank god this is over, I've been getting so much whiplash from changing what I believed was the right answer. You guys do such a good job at explaining things and making your points I love it
This has been my favorite "battle of wits" and I hope, that we will get a Season 2 with even moahr fact hunting :)
Oh boi now we are hooked like a crackhead! Cant wait for the cgi battles!
"It was never about who wins. It was about what is the right scientific explanation for a scientific problem" "I lost a bet, but it was a win for science" - Truer words have never been spoken.
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Yep, so beautiful!
th-cam.com/video/TsTV3VJOB2M/w-d-xo.html
Fantastic guys, well done!
11:23 best transition effect ever, well done - even frame by frame it is difficult to make out the transition 😂👍
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Hahah right? I was wondering if anyone else noticed that 😄
@@Tyhytrtyyuu 1 - that's not new. That's been used for nearly a century if not more.
2 - stop spamming. That's not how you show your talent or skills. Spamming a comment section of a real engineer for clicks is only going to annoy everyone who sees it. I appreciate your interest in science and technology but the time and place to share your videos is not here.
@@EeekItsSnek good guidance
Love it man, well done! The open mindedness and integrity is something we all should aspire to. Thanks for all of your great content!
I enjoyed this "battle" very much. I hope to see more friendly scientific debate like this on youtube.
Yeah, me too! Just like on the vaccines and Covid!
(dont mind me....just disturbing shit over here...)
@@copperheadroad567 that was never a debate between science minded people.
Stir refuse up as much as you want.
@@Tundra1428 true, there can never be a debate if the debate is censored... although there is this publication in the British Medical Journal.
th-cam.com/video/oaDo4ozr5Io/w-d-xo.html
We have an entire universe to discover! :)
@@Tundra1428 Excuse me?
Props for being faithful to the scientific method by being willing to change your mind in light of new evidence. This whole thing has been the an incredibly good example of how science is meant to work and was incredibly entertaining and heart warming to boot. Cheers :)
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"I was wrong and here is why."
Capital maturity my edutainer.
Mad respect for keeping the discussion scientific! This is what exactly real popular science should be. Great job Mehdi!
Thank you for phrasing it as a "loss", with the important outcome being finding the truth. Great channels and a great collaboration.
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It seems as though both hypotheses contribute to the effect, but Steve’s extra force is what is required to have the height of the fountain rise ever higher in reference to the bottom of the container. Thanks to the both of you for your work and dedication to seeking a solution.
No. The increasing height of the fountain is the magnitude of the acceleration of the falling chain expressing itself. Nothing more. No extra force. Stabilize the acceleration and the height stabilizes.
The editing at 11:23 was great.
Ye....
Ye....
Ye....
Ye....
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"It does not matter who wins." Yes, if only more of us would embrace this science would progress more rapidly. Thank you both for putting the advancement of science above personal gain...
I’m sure he would have said otherwise if he won 😂
@Anglo Saxon Politics cannot be like this, unless you want to become a hivemind.
Pretty sure science is already mostly about this. As for politics, may I present technocracy. Its government, but with science at the top instead of failed scummy lawyers.
@@OzixiThrill Nothing wrong with a shared consciousness of individual entities making consensus. Like the Geth from mass effect.
@@SophiaAstatine Humans are wholly incapable of such levels of consensus.
Really amazing to see this play out, and for a common conclusion to be found! Not for success, but science. I only wish this friendly, welcoming way of approach could or would be applied to all areas in life. Unforunately, we all have fallen to bias and wanting to be "right" at some point in our lives. Sportsmanship like this certainly makes the world a better place for everybody. What a ride!
to be fair, his blue eyes _ARE_ pretty nice...
What a 🚬
It's the spice melange
Green eyes are prettier and more rare :p
@@mattjackson9859 l have a vision of Steve Mould riding a giant worm
@@GodlikeIridium no
Big ups to Mehdi for conceding this one with such good spirit. This is how real science works.
WOW! It's not often that true and fair (and intensely grappled) science gets settled out and documented this well! It's so encouraging to see the scientific method wielded by honest minds. Thanks, guys!
There's that saying, and I forget who it's attributed to, but basically: if you believe something, you should try your best to disprove it. Telling Steve Mould to do a test that ultimately proved you wrong is the perfect example of this :)
More importantly, it adds robustness to the theory. Just like aircraft investigations rarely points who's going to jail but provides a lot of recommendations for mistakes to not ever happen again (or at least mitigated). Makes flights safer. Imagine if it's just about winning and losing. 😂 We'll just be finding out who makes the worst planes.
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I don't know how that experiment disproves Mehdi, effect still occurs but on smaller scale and it still works on flat ground
In a way, Mehdi still did win, because when science wins, everyone who's doing the science is a winner.
That logo toss was pretty smooth! I had to rewind and watch it a second time. Donating to #teamseas right now 👍
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I watched it a couple of times to be sure. The first time was a bit startling for me in the first moment, to see the logo stayed up there.
It dosent matter if you ever actually believed that you were correct or not, the best part about this video to me (other than Team Seas of course) is that you gave the best example ever of how to loose a bet! Getting angry, upset, or bitter about losing anything can only stand to make that loss worse for yourself by everyone seeing how you deal with a blow to the ego. By realizing your own error, acknowledging that and changing the way you see things is such an honorable way to go about it that it dosent even matter that you were wrong in the first place! I hope more people can adopt this mindset when competing with others.
medhi: “If I’m wrong, I’ll donate 500,000 us cents…”
me: This is the video where he admits he agrees with Steve now.
*Mehdi
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@@Tyhytrtyyuu nobody cares though
I've really enjoyed this "rivalry". You and Steve are both great at explaining things, and though I was convinced by Steve pretty much right away, I still loved all the videos from both of you. Congrats on learning something new, and on teaching us all along the way.
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I have one minor thing to add. It's not mere loops - look carefully at the chain fountain after it has built up some height. In particular, if you watch the staircase from Steve's video ( 2:36 in this video) in slow motion, you can see that with each turn it begins building up an sinusoid. The tension and bend radius have to be sufficient for this to occur. The bends of each turn cannot "collapse" quickly enough, so they begin to form a semi-rigid structure. Each time a bend is pulled up the fountain, the force acts to push the semi-rigid structure high enough into the air that the bottom of the structure is touching the surface. In the case of the rod ( 8:51 in your video), it is clear that this force need not be constant, but instead it can act periodically relative to each bend and maintain the fountain. Indeed, you can watch the end of the rod in slo-mo again and see the impulse each time the chain crosses over the rod.
Steve Mould: Surrender you are clearly outnumbered
ElectroBOOM: *You are clearly outmatched*
I wish electroboom would have won. Steve's a bit of an a-hole.
@@IBUILTTHAT What makes you say that?
@@Yuxim Nah i agree Steve often comes off as an asshole
@@Yuxim what about naming a phenomena after yourself before you prove and demonstrate it, pretty assholly if you ask me
@@rbmk__1000 ...... no
this kind of youtube community is restoring my faith in humanity. Damn, i was almost convinced to forget about university cause i dont want the 9-5 grind but grinding with things like this is definitely something im willing to get educated for.
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this is the most educational "TH-cam Drama" ever! unlike the others and their bullsht craps, respect you both as you guys respect each other! this should be the way of arguing stuff "with sense" good job lads, love it!
The perfect combo of Comedy and TONNES of Knowledge...
Tons of knowledge indeed
Yes :D
Pleasing and fascinating
This rivalry rekindled my interest in the natural world. I discussed it with my friends and, just, wow. I dunno. I loved all of this. Thanks to both of you for putting science and the truth of how nature works above yourselves!
Medhi, thank you for making learning fun! I laughed so much throughout this entire miniseries that I forgot I was learning. Hoping to see more!!
That was a gracious concession in the true spirit of the scientific method! Well done, brother. You're a scholar and a gentleman!
Thanks for the simple and straight forward explanations Mehdi. I find them easier to understand being explained in simple terms. I think sometimes the more closely we examine something the less we see and more confusing it gets. Stepping back and taking a broader view is what I prefer to do. Thank you both, Steve and Mehdi for your efforts. Steven.
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I just had the realisation that this little back and forth is perfect for showing in schools to demonstrate the scientific method and peer review, while also being delivered in a way entertaining (hopefully) for kids moreso than the average scientific discovery which nowadays grow ever more complex. If I become a teacher... Well I'm a comp sci student so it would be computing I'd teach... But if I ever act as a physics cover teacher, I'd definitely put on this playlist and do things like ask the class which side they're on after each video, or any issues they might see with certain tests such as the limitations of the 2d example.
I am just enjoying this video series!! and also the blue eyes of steve.
What a 🚬
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Yeah, they really are mesmerizing.
i love how he starts every video with "hi". someone should make a compilation.
Mehdi’s “Hi”
Louis Rossmann’s “Hey everybody, how’s it goin’”
Answers With Joe “Spinning Chair Intro”.
@@Bassotronics Hey, VSauce, Michael here
@@davidt01
Yup, Vsauce too and the Lumberjack that says “Heyy!, Thoughtytwo Here”.
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I'm really proud of you for admitting you were wrong gracefully. I didn't watch this video for a long time, because I was convinced beyond any doubt that Steve was right, and I was worried you were going to deny it. I'm glad I watched it. :)
I love how we're living in the middle of the 2021 "gravity" era
We know what happens but don't quite understand the underlying cause to the result. And on top of this, we have two big names going back and forth to come to a conclusion. I have faith in humanity!
I love how we are living in the most technologically advanced Era
@@DukeEllision329 I cant wait to see what advancements come out in 10 yrs!
@@yung-megafone I hope to be on the front line, but spots like those are rightfully reserved for the people that have loved physics and have studied it their whole lives. I have dreams though. I'm young, I'm an electrician right now but I'd like for as soon as possible to use my career to fund my scientific endeavors.
@@yung-megafone there will be 6G towers because every decade there is a faster wifi. Plus there will be more karens complaining that wifi causes cancer on the internet
But it does cause cancer. The cancer is them.
I love you Mehdi! Thanks for doing such a great job and challenging Steve Mould to better himself and his explanations and experiments. In the end, you both win. Everyone gets more knowledge, and the Oceans get cleaner! Fantastic work.
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It was fantastic to watch this back and forth after it all got settled. This was extremely entertaining. Thanks for challenging the paper, Mehdi! It shows how important it is to make sure the experiments are refined enough.
Hello Mehdi. You have done much more than it was expected. My Great respect. There is no loser in this game, science is the one who gains.
On the test being fed by the hung chain, how about looping the chain around it like an axle and spinning the feeder axle in the same direction as the chain feeding off of it, somewhat like you did with the hole saw? Probably a good idea to use glass as the feed axle to reduce friction and loop the chain loosely so RPM doesnt affect too easily.
It's over bro. Enough..
@@boluwarin "It's over" is not how science works. It's not how any of this works.
You're responses, humor, and tact during this whole debate was wonderful! I hope when I grow up I ave the grace, respect and passion you have for science.
I love the gentle hostility in this fact finding mission.
I'm so proud of you guys... and I'm very appreciative to have been around for this
I was getting frustrated that Steve also said that there was no "lever effect" when doing the chain in rod test, because you can clearly see the "lever effect" created by the chain and how it pushes it up, but now I am happy to see that they noticed it, really nice vids
this effect kinda reminds me of the whip, the way they throw the whip and then pull it back to apply maximum force at the tip which is equivalend to the bottom of the chain here
"Because it's not about who won, it's about the reality about what is actually happening"
You're a winner, even if you lose the bet.
The idea about the spinning chain being a lever effect was my initial interpretation, it explains why the fountain increases in bursts in the video as the lever effect is most effective when the top of the chain is the bit being lifted.
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Gracious in defeat, generous in acceptance. What a great guy you are, Mehdi!
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Great demonstration of science in action. Different viewpoints duking it out through experiment and following the evidence, regardless of initial bias. Both of your channels are among the best practical science channels around.
"Let me try to see where I went wrong and if I can place the blame on someone else to make myself feel better."
Man after my own heart.
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That was my only complaint is the simulations, simulations are good for explaining and teaching, but not for a 1:1 of the world because you have to keep tinkering on it to make it work
It's convenient in showing what you mean but also risky in that it's difficult to remove confirmation bias when you are inputting the variables you think are involved yourself.
Simulations are just applications of physics and assumptions. Good luck doing modern science without simulations to test agreement of theory with observations.
@@carlbennett2417 Luck will be very much needed. Ahh. We get so spoiled by technology! Makes you appreciate the giants today's scientists are now standing on the shoulders of! Just brain and paper back then. 😳
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I've been following this since the beginning. You're both a credit to science. Massive props for accepting 'defeat' with grace. It never mattered WHO was right, only that you found out WHAT was right.
What if you were both wrong, that would be hilarious
thinking if this is just centrifugal force acting up on the edges of the string / linked beads and the downward motion tips it down, forcing the other segments that are being pulled to rise up, and doesn't actually require a surface to force itself upon
I'm pretty sure this same behavior also happens irl when pulling a rope really fast through a sharp 90 degree turn
Don't have the credentials to back this up though... Just pure speculation
@@cortexpe9122 Centripetal force isn't real since it's an inertial force and only appears when viewd from a rotating frame of reference. Centripetal force is the force that allows an object to curve and you should always talk about things moving with curves paths in terms of centripetal force for these reasons.
i don't see how Medhi is wrong tho.
By all meane, steve just moved the goal point. Yes we see a kickback force etc. But medhi has already proven and shown by the reason it rise is not due to this kickback force. the kickback force merely helps but it not required in the equation.
It's like saying you need a ground/floor for a chemical to explode because when it's in confined space, it's more destructive. Even if confinment space help, the reason an explosion occured is the chemical.
@@ereder1476 this needs to upvoted to the top, i completely agree with you, he moved the goal posts.
@@nathan_law Why is the rotating frame of reference less valid than an outsider's frame of reference? There is no one absolute frame of reference.
It was really fun seeing y'all going back and forth on this. I think this will be a good resource for teachers trying to show students what the scientific process looks like beyond the scope of a experiment.
Great job to both of you to keep us so much engaging with the concepts and brainstorming. I was wondering how it will be if the simulation is carried out in a Zero-g environment.
This series was fantastic! I love the dialogue down a scientific examination. Great work to you both.
i love the brilliance of your calm and stead fast reasoning sir. but in all this it takes about 3-5 black/white boards just to put a proper equation down for the effect you two are describing
The surface feeds energy into the system to allow it to rise, without the surface, it'll still arc but the arc will drop.
So to maintain the arc, even have it grow, you need a surface to out that extra energy into it, neat
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It the surface is not moving, there is no way it can deliver energy to the chain. Force X Distance = Work (or Energy). Zero distance means zero energy.
@@bobwhite137 there is no "work" since there is no movement. But when you try something, like jumping, you can only gain height if you have a solid body that can absorb your kinetic energy and not move. This allows you to gain a lot of height. Without this surface you gain no movement, you simply swing your legs.
So the surface "reflects" the energy. The chain pushes against the solid surface, as a result due to the solid surfaces high mass and weight, it reflects that energy back into the chain.
Walking on soft materials is more difficult, requires us to expend more energy because the soft ground "absorbs" more than reflects.
So youre completely right there is no work being done by the ground, it's solid, but the energy of the chain isn't lost on a soft ground, it's kept in the chain as its reflected back when the chain rises one end, and drops the other.
Or some shit I'm losing interest
What an amazing series. Was on both sides of the debate at different times.
Wonderful, chaps
Thank you
That's why science is for grown up kids. You need the kid inside to ask questions and pursue the truth, but you need to be a man to admit you were wrong. It takes some heavy balls and maturity. Good job both of you for teaching the internet the grown up part!
I love it! You two are incredible, demonstrating how we should figure stuff out! You guys are the best keep it up!
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"Don't stop when you win, stop when Science wins."
- Sun Tsu, The Art Of War
"i can pretty much say anything and will still look cool if i add the following"
- Sun Tsu, The Art Of War
Praise Science, glory unto the enlightenment. Silica preserve you brother.
This is a good summary of "The Gentle Earth" by Christopher Anvil. :)
I wish you'd said "Sun Tsu, The Science of War."
"Genetically engineered catgirls" -Sun Tsu, The Art of Big Tiddy Goth Catgirls
A beautiful masterclass in how to debate well. The humor kept it interesting, the information kept me curious.
Interest + Curiousity = Attention
Unless we stop exporting plastic waste for "recycling", there is no point in removing trash at a rate slower than we are "recycling" it. It should be made illegal to export plastic waste to unscrupulous processors abroad who get paid for recycling, and then burn or dump the waste.
Everyone can reduce that waste by carefully recycling (at recycling centers) and reducing how much waste they produce.
Its better not to use extra plastic at all, rather then recycling it
ok got it, I wont help the environment because its not the best way to go about it 👍
@@O5MO Plastics have many benefits and can be much better than their alternatives given that the plastic waste is handled properly. As shown in the original plastic collection boat video, large amount of plastic waste is caused by lack of proper waste retrieval, not western plastic export.
Also, we shouldn't treat other countries like children, but rather expect them to not allow domestic companies to import trash unless they actually conduct proper waste management.
As long as the external costs aren't internalised (polluter pays) the amounts used will not get lower.
Steve had me convinced in his last video. Especially with the chain on the foil paper leaving dents. Pretty clear what's happening there. Gg!
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@@Tyhytrtyyuu Stop spamming this everywhere.
@@mduckernz it is not spam it is new technology
You may have lost the argument, but you won so much more. And we all benefitted tremendously from your honest challenge to his thinking. More, please!
Hey Mehdi! Another factor would be the centrifugal force, because where the chain fountain bends, it will travel on a semi-circular path. You can more or less easily use the a = (v^2)/r equasion, and with the centripetal acc. you can calculate the force. It would be an interesting feature including it in the simulation!
Medhi can yet win :)
Mehdi! Centrifugal force, at the point of the arc from rest to rising would cause enough pressure to be measurable, as Steve's video demonstrates. Do not give up yet, there is no magical push from the table!
@@IBUILTTHAT *Mehdi
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This is exactly the idea that sprung into my mind last week. If the chain forms a circle, the forces around the rotational axis cancel each other out.
Is the circle cut in half (the bottom half is removed) then the axis of rotation sees only upwards pulling forces, and the axis shifts upwards until it meets enough force of the weight of the chain, where it then will find an equilibrium.
This is the best TH-cam drama of all times
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The best drama is the one that's beneficial to everyone.
This is beautiful! This is what science is all about. We need more collaboration like this. I believe Steve has earned the naming rights of The Mould Effect.
Such a good video. I've been following the debate and really love the way its been handled by both sides. Fantastic stuff, and a strong lesson in critical thinking and scientific skepticism for all.
0.36N is equivalent to the gravity pulling down just ~36.7 grams of mass.
Also it sort of doesn't make sense for the length of the chain to influence that lever effect strength.
It was still supposed to only be the speed of the chain that influences that, not the length of the chain itself, and especially in a test where the acceleration is from an electric motor spooling the chain, not the gravity pulling it down...
This must go on!
Yeah, I'm still pretty sure that his explanation is the reason for the mould effect and that this "lever force" just keeps the fountain at a stable height relative to the coiled chain. Rather than following the end of the chain to the ground. I also feel like he already knows this and just doesn't want to make a fourth video on the subject.
But it was sideways?
is 0.36N not just (0.36N / 9.8)kg ie 0.0367kg of mass or am i wrong on that?
@@EmK02 N is not mass, it's a force. Although, because gravity is a force that can constantly accelerate mass at a specific rate (9,8m/s^2), you can easily calculate how much of this force exactly is pulling on a specific amount of mass on the Earth's surface, and that would be 1N being equal to the force of gravity pulling around 102 grams of mass at Earth's surface.
11:23 I watched this part like ten times xD best transition effect ever
I'd love to see more of these nice science-"battles".
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All you had to do was to put the chain on a balloon surface, that way you can actually see the chain pushing down on the surface. Maybe in slow motion to analyze it better
Look for a channel called Preston Becker, they basically did this and a couple of other very interesting things with the mould effect.
Thanks for your support of science, and the oceans!
One thing I should point out. Most of the garbage in the oceans isn't from people throwing garbage in rivers and waterways. It's garbage thrown in streets and even garbage cans. Garbage in streets is washed into rivers & waterways, and low-density garbage (like plastic bags) in garbage cans can blow away from the can, the truck, the dump, etc. So don't think you're innocent just because you don't throw trash in rivers.
The real way to help us to reduce consumption of single-use plastics.
I always respect a good spirited scientific dispute, especially when the conclusions are eventually mutually agreed.
4:25 All the explosions, drama, kidnappings and gunfights... To finally put some wholesome message in it. Mr Unibrow, you rock. NO! You diamond!
Do an expriment on >Fluorescent tubes vs Neodymium magnets
So my question is where the garbage will go after being pulled out of the ocean. Recycling will be very expensive, and a landfill isn't a ton better than where it is. Perhaps while we raise money for this project, we can also find a way to safely dispose of everything?
Side note: Will our next fundraiser be to remove space junk from LEO?
Garbage will go from Point A to Point B. It will make you feel good about yourself, without accomplishing much of anything.
A landfill is a ton better than where it is. The problem isn't that it looks ugly - it's that the plastic is having effects on the environment (such as filling plankton with microplastics and killing them). Putting them in a landfill takes them out of the environment.
@@keepernod2888 BS. Trash in the ocean is more harmful than trash in a landfill.
Probably straight back to a place where it's cheaper for them to just toss it back in the ocean
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I'm sad. I really enjoyed the back and forth as well as the engaging theories. Can't wait for the next science battle!
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That team seas effect at 11:20 where you threw the logo and it stayed on screen was done very nicely.
The thumbnail is looking sus..
I think the measured push-back is “leakage” from the energy building up in the wave accumulating in the material stream formed by the chain siphon. As the wave pulls the chain in anew direction, the stiffness of the chain communicates a bit of the growing kinetic energy to the surface, proportional to the stiffness of the chain, but this isn’t what causes the fountain, but actually the other way round. It’s clear there are waves traveling in the chain, the largest at the top and a smaller wave train in the drop; your simple loop on the drill is the simplest case and shows the “stiffening” effect of the kinetic energy in the chain.
If you examine a stream of water streaming in an arc, you might be surprised to see the upstream section change when you interfere with the downstream part. Here, In similar fashion, energy is accumulating in the fountain, provided by the potential energy of the chain as it accelerates by gravity and the siphon. The integrity and stiffness of the chain provides enough structure to create the siphon, and also contain the standing wave, any less and it would simply break and dribble to the floor. There is eventually equilibrium between the energy loss due to friction and the siphons acceleration, so the wave does not grow forever.
It might be valuable to test ball chains with different ball-to-ball angular flexibility to see how this constraint effects the wave propagation, but i suspect almost all variations of chain (ball weight, distance, etc) will behave similarly but w different resonance. I guess a longer falling distance and a lighter chain, but heavy enough to flow well, will reveal these wave mechanics more easily, maybe even see wave packets flowing upstream. (Edit: pls make and launch some bigger loop of chain! That’s was cool!)
I think you're right! It's clearly a wave. I think the wave is being reflected where the chain touches the bottom of the container or the loop it's over. Most of it's energy is being reflected back down the chain but some of it creates the force being measured. Anyway, the reflected energy builds the amplitude of the wave because the medium the wave is traversing, the chain, is moving as fast as the wave. So, it's not really a standing wave, but actually a traveling wave. However, since the medium the wave is traveling through is moving the same speed as the wave it appears stationary to us and more importantly it's stationary relative to the reflection point (bottom of container or rod it's looped over) this results in the reflected energy causing the amplitude to build. The wave is reflected due to impedance mismatch where the chain touches something.
@@stefanl5183 glad you agree! it’s a cool thing that waves like this propagate upstream. You can see it in traffic.
More so, a wave train actually moves faster than the individual waves. I think the large lobe at the top could grow and even crash given the right conditions.
This is such a perfect finish to this saga. Thank you!