imagine working for such a crappy space agency you get left on an “aircraft” in space which is just a chair on a platform and get stuck there for 70+ years and still live
Well, good thing KSP isn't that realistic. Where we end up having some KFK, Kerbal Fried Kerbal. All because a spark in the crew cabin caused a fire, and the pure oxygen in the cabin ignited and WOOSH! Flash Fry...and then roasted...and then toasted.
He's really good with the exception of 1 nitpicky thing: reentry heat is only something like 5% from friction (not sure of the actual number but it's low). Most of it is due to ram heating, ie the air in front of the capsule getting rapidly compressed and therefore heating up (like when you let pressurised deodorant out of a can and it gets cold, but in reverse) :)
The fireball around objects entering orbit is mostly caused by the air ahead of you heating up due to compression. This is why all reentry vehicles are flat and heat shielded facing the ground (including the challenger). If the fireball was coming from friction, only covering 10% of the surface area wouldn't make much of a difference.
The bike disc brake thing was something I discovered after descending a mountain on a mountain bike for the first time (so I was constantly on the brakes) and then pinching the brake disc like that at the bottom. 2/10 would not recommend.
@@Cyberboi well you see that wasn't the entire story. Me and a bunch of friends had rented mountain bikes to then fuck around with for a day, so we went up the nearest mountain (since we couldn't find any proper trails that weren't actual downhill trails). My friends gave up a third of the way up, and told me that if I really wanted to make it to the top I could go on alone, so naturally I disregarded their wishes and did so. Once at the top I started descending again while braking all the time, until I got to a spot like 200 meters beyond where I had left my friends. I found one of my other friends who had just decided to go a bit farther up himself. So we then descended together to where the remaining friend was sitting, and when we stopped my friend held his hand a bit away from the brake disc on his rear wheel and concluded it was hot, so I wanted to check on mine but somehow my brain decided it would be best to do this by grabbing the disc rather than holding my hand a bit away from it and feeling the radiating heat. So all in all it left me with a cool story which somewhat redeemed the bad experience.
@@Seagull780 Works with cars as well. I saw a very unexperienced dutch guy with his family in a Volkswagen T5 in front of me. He constantly braked all the way down the mountain. It was a 2000 meter high mountain in the french alps. I honked and flashed my lights at him, but he didnt understand of course. So I tried to overtake and signal him, but that didnt work also. He simply thought I was an asshole and I wanted to do him some harm. As we were finally down I overtook him and got on my brakes. We slowed down until we stopped. Then I saw that his brakes were already on fire. I had an extinguisher with me. At the end he understood what I wanted from him all the time. When you drive down a mountain, use a low gear and let the engine do the breaking for you. Just brake right in front of the corner. Let them cool of as much as possible in between.
@@Gentleman...Driver Generally just keeping it out of overdrive if it's an auto, or the highest gear in your manual, is enough to keep you slowed down. However, since people are lazy, modern vehicles do well enough if you just use the brakes while following mechanic's input on when to replace parts at regular services, because modern rotors generally are advanced enough alloys that they do not want to hold onto the heat you are generating with the friction, and can cool off well enough so long as you aren't dragging on them for 40+ minutes, or aren't constantly slowing down from high rates of speed. I would not want to cross the mountains in my 40 year old Chevy El Camino, but my 2002 GMC Yukon does just fine
This video has the most nostalgic soundtrack for me, I remember the times I randomly found Vsauce videos, and Playing Plants vs Zombies. I loved this video.
15:20 In Newtonian mechanics, the centrifugal force is an inertial force that appears to act on all objects when viewed in a rotating frame of reference. It is directed away from an axis which is parallel to the axis of rotation and passing through the coordinate system's origin love u martin
I always laugh at my fellow Americans for not understanding different accents but seeing an actual Australian struggle to figure out an Australian accent is fascinating, the only two accents I have a hard time differentiating is New Zealand and South African, but I can still usually get them right
@@3a.m.284 tbh it's just a case of I hear it so often thats it's the default accent but because I consume like 99% American media that accent is the standard for entertainment so my brain just crosses the 2 sometimes, perfect counter example I have a friend who speaks with an American accent and I never realised
@@3a.m.284 I didn’t know Martin wasn’t american until now. There’s a lot of accents in America and we usually think people with foreign accents are american unless specified otherwise. There are Germans in Texas who still speak exclusively German after ~180 years since their ancestors arrived in America.
i know the focus of these videos is the humor, but having rewatched this series a few times I gotta say, your editing, taste in music, and ability to explain complex physics in a fun way is what makes these transcendentally entertaining.
@@sufyansmits6410 yea you can just call everyone that doesnt want you in astronautica a racist , sexist, species, homophobic, transphobic, panphobic, misoginistic, ignorant, white supremacist, white man.
15:20 Im a physics student, lemme explain: When an object is in motion at some distance away from the center, there is a centripetal force, and centripetal literally means "center seeking". The centripetal force in question is exhibited on the mass pulling toward the center of the circle. Think of an arrow that starts at the mass and points toward the center, that's centripetal force. The problem is that in order for an object to spin in a circle, it needs to be connected to the center by something like a string. Try and try all you will, you can't get an object in air to spin in a circle continuously without it being connected to the center. So what is centrifugal force? It's whats known as a felt force, and is actually a result of angular (or rotational) velocity. Think of yourself on a train that's moving. You'd fall over because you're "feeling" a force acting on you, when in reality, nothing pushed you over, the train just had some velocity to it. Now if there were a wall behind you, the same thing would happen, except the wall is pushing back on you, keeping you from falling. This feeling, when you're spinning, is what we call the "centrifugal force".
Or in other words a felt force is the result of all objects with a mass having inertia. Or even simpler, objects don't want to change direction. In order to spin in a circle, the object has to change direction all the time towards the center of the circle. The not wanting to change direction is therefore a felt force in the opposite direction, aka away from the center of the circle.
17:48 Actually, it isn't air friction which heats spacecraft, but rather air compression. At those heights there isn't enough air for friction to matter, but you're moving so fast that Air doesn't have enough time to move away. And as the ideal gas law says, compressing a gas raises its temperature, thus, the ship gets hot. TL;DR: Air compression, not air friction.
Was gonna comment this. Air doesn’t really have appreciable friction in the traditional sense. The molecules do have some friction as they rub past the solid, but the resistance that air has comes from pushing the particles out of the way, not them rubbing against you.
18:00 just FYI the most of the heat generated during reentry is NOT caused by friction but rather by something called ram heating. As the heat shield passes through the atmosphere the speed of the craft compresses the air in front of it into incandescent temperatures. Most of the heat is generated in this manner. If it wasn't for the shock layer the friction would likely be greater. (Although it is easy to see why many people would think it is mostly via friction)
I checked the comments to not comment twice on the subject. Correct, most heat is caused by adiabatic compression of the gases in the atmosphere. But the vehicle's kinetic energy is ultimately lost to friction with the atmosphere (viscosity)
This can be compared to ramming a car at highway speeds into a crowd of old people. If I were driving the car any slower, then they would have time to move out of the way. However, due to my extreme speed, the old people cannot move out of the way, and are killed instantly. If I keep on driving through the crowd, not only would I slow down, I would also accumulate a pile of now-dead old people at the front of the car, keeping my bumper safe from any more damage. This is comparable to the shock layer and deceleration a spacecraft experiences during re-entry.
15:17 Challenge accepted! Centrifugal force is often described as a fictitious or pseudo force in physics. It appears in a rotating reference frame, where it acts outward on objects moving in a circle, giving the sensation of an outward force from the center of rotation. In an inertial (non-rotating) reference frame, what we actually observe is the effect of inertia. Objects tend to move in a straight line due to their inertia, but when constrained to a circular path (e.g., by a string or a gravitational force), they experience a centripetal force pulling them towards the center of the circle. This centripetal force is responsible for the circular motion. In the rotating reference frame, however, the laws of motion must account for the rotational motion. To explain why an object does not simply fly outward, we introduce the concept of centrifugal force, which appears to act outward, balancing the inward centripetal force and maintaining the circular motion from that perspective. Therefore, while centrifugal force is not an actual force in the inertial frame of reference, it is a useful concept in a rotating frame of reference to explain the apparent outward force experienced by objects.
18:08 thanks for the American measurements here I was getting worried I was about to have to go through the grueling task of making a simple google search.
4 years later and my sense of Mr martin's voice has died, he sounds so... mello... like a low tier thug compared to modern day level 100 boss martincitopants
Lmao, the one fact that Kevin got recognition for, he actually got wrong. Most of the heating from reentry is from adiabatic compression, not friction. This is when you run into air very fast and it doesn't have time to get out of the way, so instead gets squashed. This makes it very angry, so it throws fire at you.
Jake Jones If I remember correctly, the adiabatic compression has the gas accumulate at the front end of the vessel. Due to gas laws, this causes them to heat up. Eventually it turns to plasma, reaching insane levels of heat. In friction, the air passes alongside. It requires the movement of air in contact with the vessel, and it won’t heat up the vessel at much. It is still very much at play but most heat shielding is for compression. Hope I solved your doubt!
@@nethascotx24 Exactly, for an example of friction, consider a rotating cylinder. It does not displace any air, so there is no adiabatic compression, but it will still produce some heat due to the air rubbing against its surface. Conversely, though it won't remove friction, you can amplify the effects of adiabatic compression by trapping the air, e.g. inside a piston.
If you look up "Fire Syringe" here on TH-cam or follow the link below, you'll find a video demonstrating this on a much smaller and easier to understand scale. :) th-cam.com/video/4qe1Ueifekg/w-d-xo.html
Most of the heat generated on a heat shield during reentry is caused by adiabatic compression, drag accounts for very little. As the vehicle collides with the atmosphere it compresses and heats up substantially. The compressed air then heats the vehicle.
@@dirtypure2023 Well over 95% of the heating of the gases is due to compression. It's enough that heating due to friction is considered negligible when designing for the thermal load.
Hey man, this was great. I especially liked the parts where you actually explained the physics of the game and how they relate to real-life physics. I loved that!
15:15 centrifugal force is a made up concept to visualize the force caused by locking an objects inertia to a fixed point, aka it WANTS TO GO to the left but it can't because the kid is holding it down so it goes left relative to the boy. which makes it seem like a force is pulling it away from the boi, but if the boi lets go the object with not fly straight away from him, it will fly to the left. Edit: please let my family go mR. LsD FroGg
@@Insert_Name_here__ I agree to disagree the agréable disagree that agrees and disagrees along with the agreeing agree that disagrees but agrees too, basically I disagree and agree that disagree but agrees and finally I agr- nope I disagree to agree but then disagree to agree and agree
“Perform research” *makes Kerbal helicopter* “Collect valuable data” *slams Kerbals through roof* Edit: yeah, a basic Kerbal day Edit 2: Wow thanks for the likes!
This dude is going to get popular Edit: i don't know how but this guy learnd me how to save money and making my rocket efficient in campain mode with memes.
@@_vla i mean tbh dude im just wondering if your the legal age to be on youtube but considering youve got a pokemon pfp and one of thosr cool 2012 usernames ima geuss your barely 13 if not twelve
Part 3 of this was in my recommended a couple of days ago, I thought it would just be someone playing ksp for the first time without knowing how anything works, so I just let it be. Today I saw it again and decided to look up Part 1, and boy am I glad to be proven wrong! Hilarious stuff! Subbed. … Could’ve skipped the whole secondary school physics lesson, but others seem to like it so it’s fine, and you manage to keep it entertaining so I guess some repetition can’t hurt me! On to watch part 2 -> PS. RIP Jeb
The video is only 3 years old but Im shocked when I revisit this video how innocent and young this creature sounds Unknowing of the constant horrors that will torment them forever
Mr. Martin broke so many school rules. He used poopy words He pointed a gun at me He made a rocket called Obama prism He allowed an elephant in his class (a literal elephant) He had in person class during pandemic He taught something fun
Though I am late to the party, as a physics major (BA so I care less) I wish to explain centrifugal force and not be repeatedly shot by a neon meme frog. A way to think about centrifugal force is the idea of equal and opposite reactions (mentioned previously in the video); however, with a slight catch. The centrifugal force is more akind to the force you would feel while spinning than a force outright. The force on the string caused by the spinning is due to the tautness of the rope as you pull it outward by spinning it. Imagine being in one of those carnival rides, like a teacup, spinning and pushing you outward towards the seats. Though not a string, the idea still remains as you are pushed outwards, making it seem as if there is a force pushing you away from the center, but in reality it is your body acting coarsely to the force being directed inward to the center of the spinning axel. This is all caused by the viewers reference frame really, as they seem to be pushed away, but in reality are moving due to a force pushing in and basically being yeeted out of the frame. Another way to think about that is one of those playground marygorounds you try to yeet people off and cause the most injurie. Is this explanation correct: mostly. Do I care: slightly. Am I still about to be shot by a neon green meme frog: probably.
@@jimmer828 pretty much. space craft move faster than the speed of sound most of the time, so instead of the air molecule being able to move out of the way, they're forced out of the way. so you create a shockwave where the air molecules compress and then at a certain point that shockwave is pushed through resulting in a sonic boom. by moving at such high speeds and forcing the air molecules around the aircraft, they rub more and create friction, resulting in aircraft such as the SR-71 which travelled 3x the speed of sound to get as hot as 450 - 950 degrees celcius in flight. same kinda thing happens on re-entry. another way to think about it is a speed boat moving through the water so fast that the friction of the water molecules on the boat's hull begins to generate steam, though that's slightly different but a simple kind of idea.
@@dirtypure2023 you're both pretty much correct. i've written a much longer explanation on it but the short end of it is that it's just complicated friction. you move so fast it builds up and then can't "stick" anymore so it gets blown away, hence why you get sonic booms.
Honestly really wish TOS were outlawed as never legally binding and always in the wrong, and would rather just see a digital bill of rights law that extends constitutional rights to the digital world... EXPLICITLY... Since it seems like every platform has conveniently forgotten the constitution and justifies it with "well, we are a private company". Not gonna happen with some of the corporate BS the FCC and congress are pulling right now though.
As an aerospace engineer and a pedant, I would like to point out that friction is not the primary driver of the ram heating on reentry but actually compression. It’s the opposite of what happens when you use a spray duster and the can gets really cold. Instead of a gas expanding and getting cold, the air is being compressed by the craft and this heating up. But the video is still incredibly well done :-)
"Actually the plasma flare is caused by the air molecules compressing very, very hard in the front of the craft heating up the air and causing the re-entry heating" "... shut up Kevin"
There’s a mod called Smurff that actually makes the stock parts usable with real solar system. Instead of the tanks being make of literal lead and tungsten, they are made to have realistic weight so you can take off from Earth. Nice for playing RSS without wanting to run your head through a wall with RP-0.
SMURFF hasn't been maintained for a while iirc. RP-1 on easy difficulty settings is better, anyway. Real engines, real tank weights, game mechanics adjusted to make sense... 10/10 can't go back to stock (nothing against stock players, of course) Edit: to clarify, I play RP-1 on moderate settings, and don't find it necessary to "run my head through the wall," which is why I'm mentioning playing RP-1 on EASY settings as probably quite a chill experience.
15:15 I don't remember much from AP physics however I think I remember the explanation of centrifugal force. There isn't an actual force pulling on the object, where as it is the inertia pulling you out. think of the direction of travel, If the string pulling you in the circle snapped, you would fly in a straight line from that point. However, the string pulls you to the side and this is what causes the the centrifugal force as you have all your masses inertia pulling you straight while the string is pulling you to the side. This leads to an angle of inertia pulling you off of the circular line of travel which is what we process as that force. TLDR: Centrifugal force is just a string/object fighting your inertia into a circle
I forgot his username so I just searched "frog man kerbal space" and it actually worked.
now thats epic.
Wow
Hello soldier sir!
yes please
Confirmed it do
imagine working for such a crappy space agency you get left on an “aircraft” in space which is just a chair on a platform and get stuck there for 70+ years and still live
Eventually, he stopped thinking
A fate worse than death
@Guy Panzerboss NASA's new age regeneration face cream.
Poor lad's orbit probably made him quite toasty
LMAO
“Father, where do we go when we die?”
“...to a classroom son...a classroom in space...run by a frog.”
angel beats but somehow more cursed
That would actually be rad the afterlife is just school 😂
*commits forever sleep instantly*
True
Tbh i would rater spend eternity learning things from a frog
Imagine a real space program who’s second flight resulted in a pilot hitting the ocean at 2 times the speed of sound.
Well, good thing KSP isn't that realistic. Where we end up having some KFK, Kerbal Fried Kerbal. All because a spark in the crew cabin caused a fire, and the pure oxygen in the cabin ignited and WOOSH! Flash Fry...and then roasted...and then toasted.
@@Qardo And then put between two peices of bread
And keeps getting funded
@@Qardo this seems reminiscent of the Apollo 1 disaster. Am I correct?
@@Qardo fucking pure oxygen??? in the cabin????
*education*
*Gaming*
*Memes*
*this guy is the perfect package*
Martincitopants Education package now available at $69.99!
He should make some masterclass shit
@@HeidenLam sign me right the fuck up
He is a master class
Dont forget that music
"Jeb is actually dead"
Ah yes. When Jeb or Val die, this is when you delete the save file.
or, yknow, edit it.
Nah only bill, bob or jeb
@@josobread186 And Val
@@GhostlyBanes she aint og
@@josobread186 she is in the big "boi" zone now
Me: * Tosses a piece of bread to a crow in the park *
Crow: * Eats it an flies off *
2 minutes later: 4:41
e
"ayo that guy hadning out bread!"
Underrated comment
@@untitledname8773 sus link
@@ThePaperKhan Say Kid Amogus Backwards.
I religiously return to this series every few months or when I can't sleep. I am never disappointed.
Same
Glad to see I'm not the only one.
This game will be free on Epic on 5th of January. Just in case anyone like me doesen;t have it yet.
@@xxXXRAPXXxx sadly announcing this is cap
@@K2CSR ? it was free at that time as i did get it myself so i don;t know what you are trying to say here mate.
Is it just me or is Martin actually really good at explaining how this all works?
No is not just you
He is good at explaning
It helps that he is a meme lord, and he said buckle your fuckels.
He's really good with the exception of 1 nitpicky thing: reentry heat is only something like 5% from friction (not sure of the actual number but it's low). Most of it is due to ram heating, ie the air in front of the capsule getting rapidly compressed and therefore heating up (like when you let pressurised deodorant out of a can and it gets cold, but in reverse) :)
@@matthewturnock8725 he corrected this later
“All right class, sit down and buckle your fuckles”
One of the greatest quotes I have ever heard
What’s the music that starts playing when he says that called?
When does he say it?.
🤣
yes
@@SaigaSolos 2:01 Slightly late but
If you look really closely, you’ll notice that Jeb smashes into the water at several times the speed of sound.
Truly underrated line.
I blinked what happened
@@toasterhavingabath6980 o ya uuuu jeb died
The fireball around objects entering orbit is mostly caused by the air ahead of you heating up due to compression. This is why all reentry vehicles are flat and heat shielded facing the ground (including the challenger). If the fireball was coming from friction, only covering 10% of the surface area wouldn't make much of a difference.
The random half life scientist screams really make it for me.
I thought it was swaggersouls
Same man
STAHP
I recently played half life for the first time and i recognised it from this
Bro I thought it was maxmoefoe..
I may be thinking of another scream..
Fun Fact: KSP is about making your own ICBMs, not about getting astronauts to space. Don't let the name fool you.
I did not find this fact funny at all
bobby blitz well then I think you should leave
*north korean propaganda music intensifies*
*SOVIET NATIONAL ANTHEM INTENSIFIES*
ah yes the true meaning is Korean space program
The bike disc brake thing was something I discovered after descending a mountain on a mountain bike for the first time (so I was constantly on the brakes) and then pinching the brake disc like that at the bottom. 2/10 would not recommend.
wait what was positive enough for it to get 2 instead of 0/10
@@Cyberboi knowledge :)
@@Cyberboi well you see that wasn't the entire story. Me and a bunch of friends had rented mountain bikes to then fuck around with for a day, so we went up the nearest mountain (since we couldn't find any proper trails that weren't actual downhill trails). My friends gave up a third of the way up, and told me that if I really wanted to make it to the top I could go on alone, so naturally I disregarded their wishes and did so. Once at the top I started descending again while braking all the time, until I got to a spot like 200 meters beyond where I had left my friends. I found one of my other friends who had just decided to go a bit farther up himself. So we then descended together to where the remaining friend was sitting, and when we stopped my friend held his hand a bit away from the brake disc on his rear wheel and concluded it was hot, so I wanted to check on mine but somehow my brain decided it would be best to do this by grabbing the disc rather than holding my hand a bit away from it and feeling the radiating heat. So all in all it left me with a cool story which somewhat redeemed the bad experience.
@@Seagull780 Works with cars as well. I saw a very unexperienced dutch guy with his family in a Volkswagen T5 in front of me. He constantly braked all the way down the mountain. It was a 2000 meter high mountain in the french alps. I honked and flashed my lights at him, but he didnt understand of course. So I tried to overtake and signal him, but that didnt work also. He simply thought I was an asshole and I wanted to do him some harm.
As we were finally down I overtook him and got on my brakes. We slowed down until we stopped. Then I saw that his brakes were already on fire. I had an extinguisher with me. At the end he understood what I wanted from him all the time.
When you drive down a mountain, use a low gear and let the engine do the breaking for you. Just brake right in front of the corner. Let them cool of as much as possible in between.
@@Gentleman...Driver Generally just keeping it out of overdrive if it's an auto, or the highest gear in your manual, is enough to keep you slowed down. However, since people are lazy, modern vehicles do well enough if you just use the brakes while following mechanic's input on when to replace parts at regular services, because modern rotors generally are advanced enough alloys that they do not want to hold onto the heat you are generating with the friction, and can cool off well enough so long as you aren't dragging on them for 40+ minutes, or aren't constantly slowing down from high rates of speed. I would not want to cross the mountains in my 40 year old Chevy El Camino, but my 2002 GMC Yukon does just fine
BROOOOOO this dude actually studied to be a aeronautical engineer, I wondered why this shit has so much accurate information lol
Wait, actually though? How do you know?
@@thehobbist5544 His wiki page and also he has mentioned it in a couple videos, not sure which one.
@@evolifesword5972 Thats awesome! Thanks for the info man!
He so dum that he became so smort
I learned more about space playing KSP in third grade than most people do in highschool/college
It’s mildly concerning when a stock image frog man can explain rocket science better than my school teachers
yeash
I’m pretty sure he’s got nuclear engineering qualifications
@@Shadowdrake888 no I thibk he got uhm aeronautics engineer degree
Yeah
Defunding education is one hell of a political drug
This video has the most nostalgic soundtrack for me, I remember the times I randomly found Vsauce videos, and Playing Plants vs Zombies. I loved this video.
Wait so you know what song is played at stage 1?
@@furiousw4r10rd9 its “Watery grave” from the game Plants vs Zombies
@@Nebraski03 thank you good sir
@@furiousw4r10rd9 Other songs are Brainiac Maniac and Graze the Roof. Also great songs from PvZ
@@ronanzwa3443 N o i d e a n g l , m a t e
15:20
In Newtonian mechanics, the centrifugal force is an inertial force that appears to act on all objects when viewed in a rotating frame of reference. It is directed away from an axis which is parallel to the axis of rotation and passing through the coordinate system's origin
love u martin
And it’s more easily described as an observed acceleration
There is no feasible way you can love martin you have never met him this is a fake comment
@@ItsBobbyBlitz love transcends all boundaries, my friend.
Love always finds a way
@@hammy1137 pee
yea that is wat i was jus about to say lol
I never thought I’d actually learn something watching martincitopants
Centrifugal force is inertia resisted by your surroundings. It is actually the absence of accelerating forces on you.
thank you
Nerd
@@yeeyee6529 Yeah, but he did pull a gun on me, so I kinda had to.
@@iiiiiiiiiiiiiiiivy fair 'nuff
@@iiiiiiiiiiiiiiiivy YOU DID IT NOW
Have a cookie
4:51 As a near brainless Aussie I have a hard time telling an aussie accent but your use of dollaridoos really put the final nail in the coffin
21:30 check for The Last Post, that one got me
@@YukiKitsune4074 true true I guess I never considered thats a uniquely Aussie thing
I always laugh at my fellow Americans for not understanding different accents but seeing an actual Australian struggle to figure out an Australian accent is fascinating, the only two accents I have a hard time differentiating is New Zealand and South African, but I can still usually get them right
@@3a.m.284 tbh it's just a case of I hear it so often thats it's the default accent but because I consume like 99% American media that accent is the standard for entertainment so my brain just crosses the 2 sometimes, perfect counter example I have a friend who speaks with an American accent and I never realised
@@3a.m.284 I didn’t know Martin wasn’t american until now. There’s a lot of accents in America and we usually think people with foreign accents are american unless specified otherwise. There are Germans in Texas who still speak exclusively German after ~180 years since their ancestors arrived in America.
Why am I learning more from him than my own teacher
Hes just better
Bc he actually makes learning fun
to be honest i am not surprised when something teaches me more then how much i learn at school
The power of beans
@Amity Adkins he IS your teacher
i know the focus of these videos is the humor, but having rewatched this series a few times I gotta say, your editing, taste in music, and ability to explain complex physics in a fun way is what makes these transcendentally entertaining.
This man has taught me more about aeronautics than university ever will
Ikr
Well of course if you take Gender Studies as a major
@@sufyansmits6410 yea you can just call everyone that doesnt want you in astronautica a racist , sexist, species, homophobic, transphobic, panphobic, misoginistic, ignorant, white supremacist, white man.
@@Dutchman-2002 username checks out
@@the-letter_s its a common dutch name wtf
It's like an actual rocket science lesson got addicted to crack cocaine and I love it
So dinner with John Carmack?
Yeah definitely dinner with Inter-dimensional warp bending of the universe John Carmack
I need him as my physics teacher 🙃🙃🙃🙃🙃
Ah yes the “liquid stage” is my favorite part of “casting couch”
That must've been on purpose
The thighs are my favorite part
@@universalsoldier9313🤨
WOOOOOOOOOOOW your vary mature
aw yup🤨
I don't know why but that "lettuce begin" just resonates with me
You to?
*cabbage continue*
15:20 Im a physics student, lemme explain:
When an object is in motion at some distance away from the center, there is a centripetal force, and centripetal literally means "center seeking". The centripetal force in question is exhibited on the mass pulling toward the center of the circle. Think of an arrow that starts at the mass and points toward the center, that's centripetal force. The problem is that in order for an object to spin in a circle, it needs to be connected to the center by something like a string. Try and try all you will, you can't get an object in air to spin in a circle continuously without it being connected to the center. So what is centrifugal force? It's whats known as a felt force, and is actually a result of angular (or rotational) velocity. Think of yourself on a train that's moving. You'd fall over because you're "feeling" a force acting on you, when in reality, nothing pushed you over, the train just had some velocity to it. Now if there were a wall behind you, the same thing would happen, except the wall is pushing back on you, keeping you from falling. This feeling, when you're spinning, is what we call the "centrifugal force".
Wow
sHUT UP KEVIN
still interesting lol
Yup, it's essentially a felt force of an object's inertia
Or in other words a felt force is the result of all objects with a mass having inertia. Or even simpler, objects don't want to change direction. In order to spin in a circle, the object has to change direction all the time towards the center of the circle. The not wanting to change direction is therefore a felt force in the opposite direction, aka away from the center of the circle.
Boring
Jebediah deserves an award for being to every fricking planet more than once
And sacrificing himself...more than once
@@YSQUARED. and getting shot out of the solar system for SCIENCE, more than once
@@josephdavison4189 and keeping -inhales-
*important data*
and being a successful test pilot and fighter pilot ace
@@alecboi777 more than once
17:48 Actually, it isn't air friction which heats spacecraft, but rather air compression. At those heights there isn't enough air for friction to matter, but you're moving so fast that Air doesn't have enough time to move away. And as the ideal gas law says, compressing a gas raises its temperature, thus, the ship gets hot.
TL;DR: Air compression, not air friction.
Was gonna comment this. Air doesn’t really have appreciable friction in the traditional sense. The molecules do have some friction as they rub past the solid, but the resistance that air has comes from pushing the particles out of the way, not them rubbing against you.
Air + hydraulic press = fire
SHUT UP KEVIN
How did that need a TL;DR
TL;DR it's a short comment.
nerd or really smart?
Yes
“Today we are going to talk about how to exit earth”
“Please let thi-“
“KEVIN shöt”
Åäö
I love that he went out of his way to teach aeronautics and physics in as interesting a manner as possible.
shut up kevin
!
@@jjsdumbshit2792 !
@@stickfinyet5863 !
@@jm56585 !
The Modder's Creed: "Mod it 'till it breaks."
then you clearly haven't played any Skyrim because that shits already broken no need for mods. Badum tssssss
@@dummythickrodriguez then you clearly havent played skyrim mods, because that shit breaks it so badly it gives you ptsd
@@imcardbored8394 modding Skyrim is like fixing a leak with a knife
@@imcardbored8394 I had one mod that gave you a sword and it bricked my save
@@imcardbored8394 well did you know that after abot 300+ mods your PC will bleed
18:00 just FYI the most of the heat generated during reentry is NOT caused by friction but rather by something called ram heating. As the heat shield passes through the atmosphere the speed of the craft compresses the air in front of it into incandescent temperatures. Most of the heat is generated in this manner. If it wasn't for the shock layer the friction would likely be greater. (Although it is easy to see why many people would think it is mostly via friction)
I checked the comments to not comment twice on the subject. Correct, most heat is caused by adiabatic compression of the gases in the atmosphere. But the vehicle's kinetic energy is ultimately lost to friction with the atmosphere (viscosity)
SHUT UP KEVIN
This can be compared to ramming a car at highway speeds into a crowd of old people. If I were driving the car any slower, then they would have time to move out of the way. However, due to my extreme speed, the old people cannot move out of the way, and are killed instantly. If I keep on driving through the crowd, not only would I slow down, I would also accumulate a pile of now-dead old people at the front of the car, keeping my bumper safe from any more damage. This is comparable to the shock layer and deceleration a spacecraft experiences during re-entry.
bump so martin can see this
well isnt the heat from compression just more friction?
15:17
Challenge accepted!
Centrifugal force is often described as a fictitious or pseudo force in physics. It appears in a rotating reference frame, where it acts outward on objects moving in a circle, giving the sensation of an outward force from the center of rotation.
In an inertial (non-rotating) reference frame, what we actually observe is the effect of inertia. Objects tend to move in a straight line due to their inertia, but when constrained to a circular path (e.g., by a string or a gravitational force), they experience a centripetal force pulling them towards the center of the circle. This centripetal force is responsible for the circular motion.
In the rotating reference frame, however, the laws of motion must account for the rotational motion. To explain why an object does not simply fly outward, we introduce the concept of centrifugal force, which appears to act outward, balancing the inward centripetal force and maintaining the circular motion from that perspective.
Therefore, while centrifugal force is not an actual force in the inertial frame of reference, it is a useful concept in a rotating frame of reference to explain the apparent outward force experienced by objects.
uhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhyhhhhhhhhhhhhh
Jokes aside : this video is absolute genius. A mix of ksp, memes, random earrapes and kerbal abuse. I fuckin' love it.
*”””realism”””*
BUT HOW
And vsauce impressiond
I do to
I can’t wait for the next video on this lol
Hey, so I meticulously looked up every piece of music/song used in this video!
Feel free to correct me or fill in the blanks :D
00:08 Gran Turismo 3: A-Spec OST - Light Velocity
01:24 Piano Fantasia - Song for Denise (Maxi Version)
01:45 György Ligeti - Requiem for Soprano and Mezzo-Soprano
02:09 Grim Fandango OST - Smooth Hector
04:48 Grim Fandango OST - Hi-Tone Fandango
05:48 PvZ OST - Watery Graves (Fast Version)
06:32 Jake Chudnow - Moon Men (a.k.a. Vsauce Music)
08:06 Grim Fandango OST - The Enlightened Florist
08:41 Windows96 - Mind Mirage
09:17 Grim Fandango OST - 9th Heaven
09:54 Jake Chudnow - Moon Men (a.k.a. Vsauce Music)
11:21 ???
12:23 Grim Fandango OST - Companeros
12:54 Jake Chudnow - Moon Men (a.k.a. Vsauce Music)
13:33 Grim Fandango OST - Companeros
14:26 Pvz OST - Day Stage
15:53 Grim Fandango OST - Mr Frustration Man
16:14 PvZ OST - Graze the Roof (In-Game)
17:20 Jake Chudnow - Moon Men (a.k.a. Vsauce Music)
18:54 Grim Fandango OST - Companeros
19:22 PvZ OST - Brainiac Maniac
20:49 Fanfare - Final Fantasy 7 (found by Cybervact)
21:22 Joseph Haydn (?) - (Known today as) The Last Post
21:48 PvZ OST - Brainiac Maniac
22:58 Grim Fandango OST - Mr Frustration Man
You are a good man, thank you
@@egg-yolk Much appreciated :)
Godspeed you absolute legend
Pog
pagging
Our first rocket has one goal:
*U P*
Wheeeeeeee
*U* *P*
*U*
*P*
U P
Ender Gaming *U P* & *D O W N* then *E X P L O S I O N*
21:30 this is the first time that I’ve ever laughed at hearing the last post play 💀
Nobody gonna talk about how he uses the plant vs zombies ost so perfectly
Everytime I see him use it takes me back to simpler times
thank you
Yes
yeess s old times
Same bro
Kevin: *exists*
Martin: *approaches with hostile intent*
**casually approach child**
@@theradiance2453grab the child
Yeet child with force of the casting couch
"That's it I've had enough." -@Martincitopants
@@harleypignat5820 i never thought id see "child" and "casting couch" in the same sentence, what a time to be alive
18:09 thank you for translating the speed to American measurements, it’s super helpful
Ew murica is, like, rly gross lmaooo🤣🤣🤣
@Yeetus Yeetus Kermit self deletus I like trains it is I WHO ASKED
@@redundantstuff100 dio?
God, he’s so much calmer in this than I’m used to.
Yeah I was expecting him to constantly be yelling
Yuh
For now
The greatest threat to kerbal lives are fat fingers and accidentally warping while trying to land on the moon. Never forget.
rand_username mun*
@@pugs6357 .......*inhale*.................KAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAren
@@tdubb1220 but it is mun not moon
Music used:
5:49 - PvZ: Daytime in backyard (Horde)
16:15 - PvZ - The Roof (Horde)
19:20 - PvZ Zomboss Theme
fucking legend
Absolute Lego
Thank you
Thank you kind stranger
Your comment needs to be pinned, I was literally about to comment a question about what song it was.
18:08 thanks for the American measurements here I was getting worried I was about to have to go through the grueling task of making a simple google search.
4 years later and my sense of Mr martin's voice has died, he sounds so... mello... like a low tier thug compared to modern day level 100 boss martincitopants
8:40 KSP veterans like to refer to this principle as "Destructive Staging"
Lmao, the one fact that Kevin got recognition for, he actually got wrong. Most of the heating from reentry is from adiabatic compression, not friction. This is when you run into air very fast and it doesn't have time to get out of the way, so instead gets squashed. This makes it very angry, so it throws fire at you.
Accurate
What's the difference between adiabatic compression and friction? (Not that I'm testing you I just genuinely am interested)
Jake Jones If I remember correctly, the adiabatic compression has the gas accumulate at the front end of the vessel. Due to gas laws, this causes them to heat up. Eventually it turns to plasma, reaching insane levels of heat. In friction, the air passes alongside. It requires the movement of air in contact with the vessel, and it won’t heat up the vessel at much. It is still very much at play but most heat shielding is for compression. Hope I solved your doubt!
@@nethascotx24 Exactly, for an example of friction, consider a rotating cylinder. It does not displace any air, so there is no adiabatic compression, but it will still produce some heat due to the air rubbing against its surface.
Conversely, though it won't remove friction, you can amplify the effects of adiabatic compression by trapping the air, e.g. inside a piston.
If you look up "Fire Syringe" here on TH-cam or follow the link below, you'll find a video demonstrating this on a much smaller and easier to understand scale. :)
th-cam.com/video/4qe1Ueifekg/w-d-xo.html
1:34 is the best part of the whole video.
"Mmmm.. Orb."
Mmmmm touch E
B O O O O O O O M!
And encounters with Ksp's deep space kraken
O R B O I D
@@Pigeon83873 so buckle up fuckers because today were going to the stars
Most of the heat generated on a heat shield during reentry is caused by adiabatic compression, drag accounts for very little. As the vehicle collides with the atmosphere it compresses and heats up substantially. The compressed air then heats the vehicle.
Finally, somebody who speaks english!
That's a rather interesting fact. What's the ratio between drag-generated heat and that of adiabetic compression? If you know..
@@dirtypure2023 Well over 95% of the heating of the gases is due to compression. It's enough that heating due to friction is considered negligible when designing for the thermal load.
I love how, even in death, Jebediah's company still lives on
"Gravity"
*Vsauce music doesn't play*
Oh no, something went wrong
I love how you make jokes but you also actually know what you're doing. It's the best combination.
Abdul joins the Bean Space Program, leaving piracy to round himself out and forget about the war crimes he committed on the Big Yamato.
Jimbo joins in to, providing resources needed for the rockets
I thought this was about my friend abdul, long story short he got eaten by a wormhole controlled by a gay dude
@@jotarobat
Oh hey jotaro, how's jolyne?
@@jotarobat is that a jojo reference?
@@jakelarson2360 perhaps
The use of Sound effects and music is absolutely amazing
Whats the music in launch 1 launch 4 and launch 6
@@Swope00 plants vs zombies music
@@bruhbruh1470 oops I forgot to delete my comment already found it
@@Swope00 why delete it? It led to me finding out without having to Google it.
The song playing at 16:43 is called "Graze the Roof" from the game Plants Vs Zombies
K thanks mata
I am a plants vs zombies lore master I know this.
But what about the other times he used Plants vs Zombies music...
Damn this actually slaps
@@STPromosMusic no
Hey man, this was great. I especially liked the parts where you actually explained the physics of the game and how they relate to real-life physics. I loved that!
Me: mom I wanna catch internet historian
Mom: we have internet historian at home
Internet historian at home:
Me: das gud
I can't believe I've been named after many spaceships
4 TIMES!
this man an arrow
15:15 centrifugal force is a made up concept to visualize the force caused by locking an objects inertia to a fixed point, aka it WANTS TO GO to the left but it can't because the kid is holding it down so it goes left relative to the boy. which makes it seem like a force is pulling it away from the boi, but if the boi lets go the object with not fly straight away from him, it will fly to the left.
Edit: please let my family go mR. LsD FroGg
The man needs a Nobel prize 💀
@@Insert_Name_here__ I agree to disagree the agréable disagree that agrees and disagrees along with the agreeing agree that disagrees but agrees too, basically I disagree and agree that disagree but agrees and finally I agr- nope I disagree to agree but then disagree to agree and agree
@@Antonemann Yeah.
"even though jeb is dead but atleast... we got that bread" most amazing quote in history
"peepee poopoo...
*C u m . "*
- Valentina Kerman
How the fuck does your text- in English- have a google translate feature
@@mahkus The translation system apparently doesn’t like bolded text and assumes its a different language
I'm an aerospace engineering major. And he actually explains things better than my teacher sometimes. It's amazing
He did study to be aeronautical engineer.
Marco must be indian secretly
@@Jonk390as an Indian I can confirm
“Perform research”
*makes Kerbal helicopter*
“Collect valuable data”
*slams Kerbals through roof*
Edit: yeah, a basic Kerbal day
Edit 2: Wow thanks for the likes!
S k i e n c
Very valuable data it is
Kerbal helicopters are E N G E N I R
And then spend the rest of the day ripping out all of the mods to find the conflicting ones that crashes the game instantly.
a a a a a a
o u c h .
5:01
this is my favorit vidio series thank you so much for this mart
This dude is going to get popular
Edit: i don't know how but this guy learnd me how to save money and making my rocket efficient in campain mode with memes.
I almost thought you were gonna say save money and 15 percent on car insurance when you switch to geico
you mean taught?? are you old enough to be on here
@@Derpis03 imagine complaining about someone else's grammar
@@_vla i mean tbh dude im just wondering if your the legal age to be on youtube but considering youve got a pokemon pfp and one of thosr cool 2012 usernames ima geuss your barely 13 if not twelve
@@Derpis03 if a guy likes pokèmon and english isn't their first language then they aren't all young
I've said this before, this channel is underrated and really needs the recognition it deserves. Great content.
I feel like I just took an advanced aerospace engineering course
Bruh more like physics 1
@@nicksullivan4203 ohhhhh ! smart guy over here!!! smart guy!!!!
sam he kinda just said f = ma lol
@@nicksullivan4203 cringe
@Adam Gibb stfu
Can't get enough of this man's hl1 scream addiction
He doesn't need to hear all this, he is a highly trained professional
@@oz_jonesi see youre a man of culture aswell
@@oz_jonesyou'll just have to wait until AFTER the test.
“Wait..Earth was Obama this whole time?”
“Always has been.”
no obama prism
*And Mars is China*
Venus is Russia
@@jm56585 Actually Russia is Jupiter and Canada is Saturn
Oh yeah i forgot, and Australia’s Pluto right?
Part 3 of this was in my recommended a couple of days ago, I thought it would just be someone playing ksp for the first time without knowing how anything works, so I just let it be.
Today I saw it again and decided to look up Part 1, and boy am I glad to be proven wrong! Hilarious stuff! Subbed.
… Could’ve skipped the whole secondary school physics lesson, but others seem to like it so it’s fine, and you manage to keep it entertaining so I guess some repetition can’t hurt me! On to watch part 2 ->
PS. RIP Jeb
F in the chat for Jeb
F
F
welcome aboard...
also F
F
“Collect valuable data” **kerbals dying**
The video is only 3 years old but Im shocked when I revisit this video how innocent and young this creature sounds
Unknowing of the constant horrors that will torment them forever
FINLAND FOREVER!
Finland.
@@draexian530 Yes
He is finally free of Finland.
But the factory must grow.
Mr. Martin broke so many school rules.
He used poopy words
He pointed a gun at me
He made a rocket called Obama prism
He allowed an elephant in his class (a literal elephant)
He had in person class during pandemic
He taught something fun
lmao
lmao
lamo
Shut up Kevin
Oh god I'm fkin ded
Killing Jeb on the 2nd launch is something reserved to the elite of the Kerbal program
Though I am late to the party, as a physics major (BA so I care less) I wish to explain centrifugal force and not be repeatedly shot by a neon meme frog.
A way to think about centrifugal force is the idea of equal and opposite reactions (mentioned previously in the video); however, with a slight catch. The centrifugal force is more akind to the force you would feel while spinning than a force outright. The force on the string caused by the spinning is due to the tautness of the rope as you pull it outward by spinning it. Imagine being in one of those carnival rides, like a teacup, spinning and pushing you outward towards the seats. Though not a string, the idea still remains as you are pushed outwards, making it seem as if there is a force pushing you away from the center, but in reality it is your body acting coarsely to the force being directed inward to the center of the spinning axel. This is all caused by the viewers reference frame really, as they seem to be pushed away, but in reality are moving due to a force pushing in and basically being yeeted out of the frame. Another way to think about that is one of those playground marygorounds you try to yeet people off and cause the most injurie.
Is this explanation correct: mostly.
Do I care: slightly.
Am I still about to be shot by a neon green meme frog: probably.
what 🐸
Thank you for your sacrifice for the bean beret
@@jasondouglas6755 thank you.
I actually just earned my BA in physics and BS in computer science today. So that was hell of a convenient timing
@@owenzook5261 i wish physicists would use “yeet” more in their explanations. gets the point across.
@@owenzook5261congratulations
Man, I can’t believe a frog explained more and better than my teachers
Just to nitpick, the majority of re-entry heat is actually caused by the rapid compression of air in front of the capsule, not friction.
adiabetic compression, to be exact
I learned that in this very comment section
But air push against air so is friction?
@@jimmer828 Good point... I'm not sure I have a rebuttal to that.
@@jimmer828 pretty much. space craft move faster than the speed of sound most of the time, so instead of the air molecule being able to move out of the way, they're forced out of the way. so you create a shockwave where the air molecules compress and then at a certain point that shockwave is pushed through resulting in a sonic boom.
by moving at such high speeds and forcing the air molecules around the aircraft, they rub more and create friction, resulting in aircraft such as the SR-71 which travelled 3x the speed of sound to get as hot as 450 - 950 degrees celcius in flight.
same kinda thing happens on re-entry. another way to think about it is a speed boat moving through the water so fast that the friction of the water molecules on the boat's hull begins to generate steam, though that's slightly different but a simple kind of idea.
@@dirtypure2023 you're both pretty much correct. i've written a much longer explanation on it but the short end of it is that it's just complicated friction. you move so fast it builds up and then can't "stick" anymore so it gets blown away, hence why you get sonic booms.
F’s in the chat for the discord. If anybody wants to start one up again we should post a unauthorized one in the comments here
Apparently they broke discord ToS so it was deleted
@Danny By having a sense of humor. ToS's are always enforced arbitrarily across the internet
Honestly really wish TOS were outlawed as never legally binding and always in the wrong, and would rather just see a digital bill of rights law that extends constitutional rights to the digital world... EXPLICITLY... Since it seems like every platform has conveniently forgotten the constitution and justifies it with "well, we are a private company".
Not gonna happen with some of the corporate BS the FCC and congress are pulling right now though.
@@hatman4818 well the constitution is meant to control the government not the people
“Jeb might be dead, but we got that bread” Me: HMMMMM
Back in the ancient Roman days:
Jesus might soon be ded
But now we got bread
As an aerospace engineer and a pedant, I would like to point out that friction is not the primary driver of the ram heating on reentry but actually compression. It’s the opposite of what happens when you use a spray duster and the can gets really cold. Instead of a gas expanding and getting cold, the air is being compressed by the craft and this heating up. But the video is still incredibly well done :-)
Imagine not commenting before the video is out.
see that blue join button where it is next to the sub button? benefits give you early video access
no lol it was a premiere.
i just came early to it.
Elon musk: we made a new rocket!
Public: so why was it made?
Elon musk: 5:28
up
up
Down
@@Valveiscool. NO. 💥💥💥💥
@@Hazy_Productions no fuel
the music choice on these videos makes me feel so nostalgic. keep making my dopamine and ill keep watching
plants vs zombies is the shit bro i fucking love it
Got Covid rn and the only way I can get to sleep is by listening to Martin’s KSP series-
Thank you Martin
i'd love school if everything was explained like that.
@Stella Hohenheim they will become homeless lol
Imagine getting 36 views from ur class
That's 36/1000 = $0.036 of big profits
Bruh these videos take a fucken long ass time to edit
Kevin shut up!
@@Dlamond_LAser keven don't even talk
@@matan7899 So better than what they get paid now?
Can we appreciate how much time and effort this man put in his video the zoom effects, the music, and more, For 24 minutes straight.
"Actually the plasma flare is caused by the air molecules compressing very, very hard in the front of the craft heating up the air and causing the re-entry heating" "... shut up Kevin"
i knew about KSP way before but this series is what really got me into it and every few months or so i give this series a rewatch
I love the pvz music in the backround its brings childhood memories
18:11 thank you, as an american I now understand
There’s a mod called Smurff that actually makes the stock parts usable with real solar system. Instead of the tanks being make of literal lead and tungsten, they are made to have realistic weight so you can take off from Earth. Nice for playing RSS without wanting to run your head through a wall with RP-0.
SMURFF hasn't been maintained for a while iirc. RP-1 on easy difficulty settings is better, anyway. Real engines, real tank weights, game mechanics adjusted to make sense... 10/10 can't go back to stock (nothing against stock players, of course)
Edit: to clarify, I play RP-1 on moderate settings, and don't find it necessary to "run my head through the wall," which is why I'm mentioning playing RP-1 on EASY settings as probably quite a chill experience.
_felixu_ I cant go back to stock either it’s like vanilla ice cream
15:15 I don't remember much from AP physics however I think I remember the explanation of centrifugal force. There isn't an actual force pulling on the object, where as it is the inertia pulling you out. think of the direction of travel, If the string pulling you in the circle snapped, you would fly in a straight line from that point. However, the string pulls you to the side and this is what causes the the centrifugal force as you have all your masses inertia pulling you straight while the string is pulling you to the side. This leads to an angle of inertia pulling you off of the circular line of travel which is what we process as that force.
TLDR: Centrifugal force is just a string/object fighting your inertia into a circle
This feels like the one man to rival Internet historian
I’m pretty sure they’re both aussies as well
"Gravity is a force..."
*Angry Einstein noises*
"Newtons Apfel krümmt die Raumzeit"
*Happy Newton noises*
Antimatter Propulsion in a nutshell:
No touchy Orb-thing
"Collect Valuable Data"
*Kills Two Kerbonauts*
Hes gonna decrease kerbals population to 0
*kerbins
They say the most effective form of birth control is correcting other peoples grammer.
*Inhales*
Kerbin's