A sharp and effective use of basic physics to dismantle common misconceptions about space travel. It’s a concise reminder that the laws of motion remain undefeated by internet conspiracies.
Deep Dive
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Deep Dive
Flat earth scumbag DODGES gravity and thrustAdded:
Thorns DJ, not from that's just his name. Thorns DJ. How's it going?
>> How's it going, mate?
>> I'm doing all right. Thorns, what shape do you think the earth is?
>> I believe it's flat.
>> Why do you think so?
>> Well, one thing is um if you're going to put a photo of the flat earth, at least don't use a scop. Use the real picture of flat earth.
>> There are no real pictures of a flat earth.
>> Of course there's not because you can't go high enough to take a picture of >> then why did you tell me to use a real picture of the flat earth? Because space doesn't exist in the flat earth model and you've got a disc floating in space with waterfall, which is >> I do because I'm because I'm making fun of flat earthers because it's a silly idea.
>> Because Yeah, because that's what you're trying to do. Because you're making it sound stupider than it is.
>> Well, it is stupid.
>> Well, look, if you believe it's true, why don't you tell me why and we can talk about it, >> right? Let's ask a few things. If space is, >> by the way, you just got really muffled.
Um, I don't know what just happened to your mic, but >> how does Thank you. Much better.
>> If space is If space is real and it's a vacuum, you believe that?
>> Mhm. Well, at least it's nearly a vacuum. It's not a perfect vacuum.
>> How can How can we How can we have a pressurized system like Earth next to a vacuum of space without the gas pressure being sucked out into the vacuum of space without a physical container?
>> Yeah. So, there's two mistakes here.
First, vacuums don't suck.
>> Vacuums don't >> The existence of a vacuum is just nothing, right? There's there's nothing in a vacuum. So, the existence of nothing doesn't do anything. What is the case that if you put a highly pressurized system that's not contained in some way next to something that doesn't have any next to something that's empty well pressure is a whole bunch of stuff bouncing off each other right and so it'll bounce off each other and spread out.
>> Now that is true when there's no containing force. Fortunately on Earth we have a containing force and it's called gravity.
>> Okay that's that's your answer to everything is gravity. But gravity hasn't You can't do any test to prove gravity exists.
>> Sure, you can.
>> What's one?
>> Like you've never looked into this. The Caendish experiment is the oldest test in the book and it's been repeated hundreds of times. Yeah, sure.
>> Yeah. And I'm surprised that you haven't heard of this. If you're making the claim that you can't run any I mean I'm I'm I'm a few experiments.
>> No, no, not this Cavendish experiment.
But then just explain it to me.
>> Have you Have you looked I'm happy to I'm happy to but like have you explain explain I haven't I haven't heard of it.
Thorns. Thorns, please. Please hold on.
>> I'm just like I'm happy to explain it to you in a minute, but I'm just a little bit puzzled. You made the claim that like you can't experimentally show that gravity exists ever, but it like just sounds like you haven't Googled this.
>> But there's the thing is with you can't just say gravity exists when it can work both ways.
>> It just sounds like you haven't googled this otherwise you would have run into the cabbage experiment and density. If you have buoyancy and density, you don't need gravity. You only need >> You only need gravity to prove for the you still can't account for the measured attraction between masses. But like look, it's just strange that you would have never run into the Cavendish experiment. Anyway, I can show you a uh >> I can show you an amateur version of the Cavendish Cavendish experiment if you'd like. But let me show you let me show you a diagram really quick because it's a little bit hard to tell what's going on in the amateur experiment.
>> It's always complicated stuff with the globe model.
>> It's not that complicated, which is why I'm showing you a pretty straightforward.
>> It's always complicated.
>> It's really not. That's why I'm showing you a pretty simple.
>> You don't need gravity for buoyancy, Jeff. It seems like that you're it seems like that you're >> a little bit confused. Okay, so um you see this behind me.
>> Yeah, just it's just way too confusing for it's you have to make it confusing.
>> This is confusing. There's like >> there's like three move. Okay, so what?
Let me explain this diagram. So you have a >> horizontal rod. Maybe it's metal, maybe it's wood, whatever it is. This horizontal rod here.
>> Yeah, >> on either end you have two small masses, right?
>> Um >> the yellow balls. Now that that rod is suspended from say the ceiling or the or you know wherever it is like a if it's in if it's in a box whatever it is suspended from a ceiling by a string >> and then there's just a mirror attached to the string right >> um now >> if you just let it be if you didn't do anything near it >> eventually that uh that string would stop rotating. I mean it you know if if it was wind or whatever it would oscillate back and forth a little bit but if you left it alone long enough it would stop rotating. I get the gist of it, mate. Right.
>> Oh, but you've never Why does it have to be?
>> So, you've never heard of it, so I'm explaining it. I'm sorry. You've never heard of it, so I'm explaining it.
>> I'm just going out of your commentary.
>> Okay. Look, look, I'm going to explain it to you because clearly you've never heard of this and you need it to be explained. So, I'm going to explain it.
I haven't even gotten to the gravity part. So, you can't say that you understand it if you've never heard of it and you don't and and you you haven't let me explain it yet. Anyway, so you attach a little mirror to it and then you can shine a laser on that mirror and you can see where you can see how rotated that uh that horizontal bar is based off of where the mirror ends up on a wall. So you shine a laser here um onto the mirror and then you know if the rod twists ever so slightly, the point on the wall will move. It'll move left or right depending on how it's twisting.
Then what you do is then you take two heavy masses, lead balls, maybe gold, iron, bronze, whatever, and then you put them on either side so that it so that if gravity were real, it would start to twist. Um, and when you do that, when you put them close to the other smaller masses, indeed, it does start to twist.
And we see that happening with the laser dot on this on the on the uh the wall on the other end of the room.
Now, feel free to unmute. Feel free to ask your questions, and I can explain how the experiment works.
>> Lovely. All right. Well, let me let me go into my version of what you think gravity really is. Okay. So, obviously, you know, if something's heavier than the mass around it or the medium around it, then it's going to fall, right?
>> Sorry. When something What do you mean by heavier?
>> Something's heavier than the medium around it.
>> So, like, what do you mean by heavy?
>> Obviously, a bowling ball is heavier than air.
>> Do you mean air?
>> It's going to fall.
>> Do you mean denser?
>> Denser, heavier.
>> Yeah.
>> Yeah. Those are No, cuz heaviness is about weight. Density is about weight divided by >> Okay. Right. Right. Right. Let me talk.
Let me talk. All right. Obviously buoyancy works the same way. So if you have something lighter than say air like helium, it's going to float. If you're on a level plane like say flat earth, you don't need to you don't need to implement gravity to make it believe that we're spinning water.
>> Are we going to talk about this experiment or not?
>> It's too confus. I guarantee 90% of your viewers don't even understand.
>> This is like so simple.
>> The globe model is so makes it so over complicated when it's so simple.
>> Look. So thorns I have it's so it's so simple it's so simple >> I have experience teaching um >> well 18 or 19 year olds I have experience teaching you know introductory students in physics classes so I have experience explaining this stuff so thorns >> which part of this experiment is complicated for you >> you all you all you've done is you've learned how to remember and regurgitate information you don't actually question which which part is complicated >> that's how you become a teacher is complicated I'm not going to lie everything about the glo model is complicated.
>> Which part of this specific experiment is complicated?
>> But you don't need none of that to >> Well, you ask you're not asking for a demonstration.
>> How does this How does this >> You're asking for a demonstration.
>> And I tell me how this proves gravity >> because when you put these heavy balls next to the light ones, >> the rod twists in exactly the rate that would be expected for mass attracting mass.
>> Yeah.
>> Are you sure that's not because it's heavier on a spinning [ __ ] um That cone thing. See, it's sitting on that cone.
>> What cone? This thing. That's just a balance.
>> Yeah, >> it's just a balance rods. The light isn't attached to it.
>> The light rod isn't attached to the balance.
>> No, it doesn't. It's not um it's not it's not really proving anything from a diagram.
>> So, which Well, this is just a diagram because I was using it to explain how the experiment works. I can show you the actual experiment in action, but I'm asking because me showing you how the me showing you the experiment in action will be useless if you don't understand what the experiment is doing. So, I'm asking you, do you understand how the experiment works?
>> What gravity is?
>> Do you understand how the experiment works?
>> I said I do. Yeah.
>> Okay. So, what would you So, if if gravity were real, what would you expect would happen when you put the heavy masses next to the light masses?
>> Um, it would attract.
>> Okay. What what would you see on >> obviously you you believe mass >> question what would you see from the lasers or what where would you see the laser move to >> I I still don't see how this is proof of gravity anyway >> why why can't you answer my question >> I can I'm just saying you would see it move >> how would the laser appear to move >> but it but if if it does move it still doesn't prove that gravity exists >> can you answer my question under it do you know >> if gravity were real >> not answering Oh, so you refuse? You're just going to dodge?
>> Um, no. No. We can go on to something else cuz I I I don't real If gravity were real, how would you expect the laser to move in this diagram? Can you answer that?
>> I'm not answering it. I don't I don't understand it too well.
>> Okay. So, you don't >> I think I think the diagram is over complicated.
>> The diagram is very simple. It has like three parts. So, >> it's simple, but it's it still doesn't prove that gravity exists. I I I know that that's what you're going to keep telling yourself. Gravity was reality.
This isn't complicated. This is very very straightforward.
>> It wouldn't be called gravity theory, would it? Would it be called gravity theory?
>> No, there's there's gravitation which is a phenomenon. There's the universal law of gravitation, which is a law, and then there's general relativity, a model or theory of gravity. There's three different kinds of things. Anyway, I'll explain it to you again. Gravity.
>> No, no, it's not. So, I'll explain it to you again. So, we have the ball. We have the two light bulbs there hanging or attached to a rod. The rod is rigid. It's like wooden or metal or something like that and it's hanging from a string.
>> Now, if gravity is real, then what would happen as you move the heavy the heavy masses next to the light masses?
>> What would happen?
>> What do you mean move them?
>> Like it's it's on they're on a spinning platform. See, like you can move you can put them closer, you can put them further away.
>> Oh, you actually move them then.
>> Yeah, you have the heavy masses. You can put the heavy masses close to spinning it. No.
So the heavy the heavy masses you can move. That's what you that's that's your independent variable, right? You can manipulate where the heavy masses are.
>> If you put the heavy masses near the light masses, see how they're near them in this picture?
>> Yeah.
>> What would happen to the light masses?
Where would they go?
>> I thought you was explaining it to me.
>> I was It's called the Socratic method of teaching.
>> Oh, no. I I don't I don't need to know.
I just need you to explain it. Okay, then I'll explain where Yeah. So, if gravity was real, then the smaller masses would be attracted to the bigger masses. So, this >> this ball would move towards that ball and this ball would move towards that ball, which means that the whole thing would rotate counterclockwise, right?
This thing would start to rotate this way. This one would start to rotate that way. and it's hanging from a string. So, it would rotate, which means that the that the mirror would rotate counterclockwise, which means that the angle that the laser hits the mirror at would change and it would deflect to the right. Does that make sense?
>> Yep.
>> So, when we do this experiment, that's exactly what happens.
>> So, in fact, >> Oh, you're not going to show me a working. You're not going to show Are you going to show me a working?
>> Yeah. Yeah. Yeah. I can show you a working a working example.
>> Sure. Uh let me pull it up really quick.
>> I'm listening, John. He's saying I'm not listening.
>> This one was This one was done by an amateur, which is really great. He did a really, really good job. So, this is not like some government whatever. This was done by a YouTuber named Blue Marble Science. His account name's over here.
You can pull up the video and watch it on your own time if you want.
>> Um >> I like I like both sides of this story.
I will listen. So, I'm just trying to find a >> there's just there's way too much um there's way too much proof of the fly now that I can't be a globe.
>> Okay, so here's here's his apparatus, right? I don't know if you can see this on the left. You have the uh see that big copper thing? That's where the >> um that's where the small balls is hanging. It's like it's suspended in there. The copper is basically a shield to prevent like, you know, electric forces from being involved and magnetic forces from being involved.
>> Holy. I'm I'm still I still haven't asked a few questions, mate. I'm just listening to heat about gravity.
>> And so then we have then we have the heavy balls over here. That's on the other side. You can see it over here, right? You can see the heavy ball there.
It's still far away.
>> So this is the apparatus. You can see that it's the same thing that I showed you in the diagram. Um or you know, similar. It's a little bit more sophisticated because it's shielded >> because because he's saying one point, Cost Why would I >> Why are you comment Why are you reading the chat?
>> Because they're saying that I haven't presented no proof, which I will get on to. So here is the las here is the laser on the far side of the wall coming to rest. Basically just wiggling back and forth a lot. And then so here's the actual uh laser beam deflection when it's close. Let me see if I can go a little bit further away. A little bit further back.
Um so that's the oscillation. So it's going to wiggle a little bit. So that we just need to know how fast it's oscillating.
So here is the uh here is the deflection of the laser beam. It's there. Then we want to skip forward a little bit.
>> So, okay. So, it was it was here when it when the >> what's moving it now.
>> So, currently it's not moving, right?
So, here's the current here's the current configuration. You have the masses on one side.
You have the he you have one heavy mass here and then you'll have another heavy mass over here which is not in frame and the laser is there. Right now, what he's going to do is going is he's going to rotate the entire system.
>> Yeah.
>> And he's going to put the heavy mass on the other side. Yeah. He's he's moving the heavy mass. He's not touching the >> He's physically pushing it.
>> Well, yeah. Yeah. He's rotating the heavy mass, not the stuff on the middle, not the light.
>> That doesn't agree with me. That doesn't finish. Let me finish, please.
>> The heavy masses are not touching the lighter masses, >> right? So, he's moving the heavier masses to the other side.
And so as he moves the heavier masses to the other side, now it should cause it to rotate to the other direction, right?
Because now you've changed the direction of the forces. Now what we can do is we can skip forward >> and there's a clock in the background so you can see it. So this is 10x speed and look how it's drifting just because the location of the heavier masses has changed direction.
>> Okay. Is that uh so this experiment is proof enough to believe in gravity?
Well, not this experiment alone, but this is one of probably one of the best demonstrations of the experiment. Fair enough. Why do you have to interrupt me answering? This is probably one of the best demonstrations that's available on YouTube.
>> I mean, you've been talking the whole time. I'm just saying that it doesn't really prove anything.
>> So, what we've seen is that the laser has moved and the only thing >> Yeah.
>> The only thing that's changed is that the heavy masses are now on the other side of the lighter masses. It's the only thing that's changed. So, you have an alternative explanation that just relies on buoyancy and density that could explain this?
>> I mean, I think the whole test is pretty [ __ ] to be fair.
>> What about it is [ __ ] >> It doesn't. I don't think it proves anything to be honest.
>> It sounds like that you just don't understand that.
>> One of the balls is heavier than the other so it's drifting a bit. That's >> why why are the lighter Why so the lighter ball is suspended by a string?
>> Let me get off this subject because I I still >> because it destroys your world view, I guess. So the lighter the lighter balls are suspended in this apparatus.
>> It does. Yeah. Um the lighter ball the lighter balls are suspended in this apparatus in this copper apparatus connected to this.
>> Can we go on to another subject >> connected to this rod? Why are the Why is that rod twisting when you put heavy masses on either side of it? Why does it make the rod twist?
>> I'll look I'll look into it for you, but I I just think he's pushing it. So >> he's not touching this. You wouldn't need to touch >> You wouldn't need to touch it at all with gravity. If mass attracts mass, you wouldn't need to touch it at all. Why?
>> He's not touching the stuff on the inside. He's moving. He's >> He's moved it physically with himself.
>> He moved the heavy masses up.
>> If mass attracts mass, if mass really attracts mass, you wouldn't have to touch it at all. But he does.
>> Why does he have to touch it?
>> He's doing an experiment. The independent variables is the location.
>> The experiment mass.
>> The independent variable is the location of the heavy masses. So if you want to manipulate the independent variable, which is how you do an experiment, you have to change the location of the heavy masses.
>> All right. Explain to me, let's change the subject a bit. Explain to me how we can move on.
>> How how does how do >> Long as we all recognize that you've been that you've been folded, that's fine. Go ahead.
>> How do work in space?
>> One sec.
>> Yeah.
>> Are you familiar with Newton's third law?
Um, it still doesn't work because there was a test that proves it doesn't work.
I've got a video someone trying to diagram if you want.
>> Newton's third law doesn't work because you have nothing to push off of. How does thrust work?
>> Well, Newton's third law isn't about pushing off of something. Let me draw a diagram and hopefully you'll see how intuitive it is.
>> Yeah, you don't have nothing to push off of in the vacuum of space.
>> You don't need to push off of anything.
Okay, so um I'm going to draw you a diagram because we love diagrams here.
So, um There's there's video proof that it doesn't work in a chamber.
>> Oh, there's video proof of it working in a chamber, too. So, anyway, let let me draw you a diagram. Okay.
It only works.
>> I can show you one, but you you wouldn't want that >> when it pushes off the wall of the vacuum chamber.
>> So, I'm going to draw you a diagram.
>> It only It only moves acceptable for you.
>> Show Show me the video of it working.
>> I'm going to draw I'm going to draw a diagram first. Okay.
>> Okay.
>> Another diagram. Here we go.
>> Well, yeah. Yeah.
>> You can't use common sense. You have to use You have to use diagrams.
>> The lovely thing about diagrams, >> this is the problem with the globe, guys.
>> The lovely thing about diagrams.
A picture is worth a thousand words, right? And like I understand that I understand that you don't want to see a diagram. I understand that you don't want to see a diagram.
>> Hey, look, I got mute.
>> I understand that you don't want to see a diagram because you know it's going to make your world view seem crazy unintuitive. Um, but the reality is is that diagrams are a great way of demonstrating a point.
Okay, let so here is a cross-section of our rocket nozzle and then you know then there's stuff up here and ignore that. There's also going to be like a little little maybe like gap here, right? This is this is a uh an approximation. It's not quite right, but so this is the cross-section of a rock and nozzle. Now, instead of imagine instead of having gas that's shoved out the back, imagine instead that you shove a grenade out the back, right? So here we have a grenade. I don't I don't know what I'm doing. Here you have a grenade.
You shove it out the back of your rocket, right? You're in space. Let's uh let's let's You're in Oops.
You're in space.
Space is going to be gray because I chose to make the rocket black. Why is it I'm everybody I'm a professional. Um so you're in space, right? And so you shove a grenade out the back, right? You shove a grenade out the back and then you let go somehow from the uh pin. You pull the pin out, you let go of the spoon, whatever. And then the grenade explodes.
So, the grenade is going to send shrapnel in all sorts of directions, right? There's going to be a piece that goes off here, a piece that goes up here, a piece that goes up here, a piece that goes off here. You know, shrapnel of all of all kinds being shot off in every which way. Um, let me make sure that I don't make space accidentally green. So you have a shrapnel sent off every which way, right? Oops. Um, and now the grenade is no longer there, right? So we can erase the grenade. It's exploded. It exploded out the back of the uh the rocket ship.
Um, great. Okay, so that that's that's the grenade. Now that grenade, it shots stuff off in every direction, right? So, I'm just going to draw some arrows to indicate. So, this one's going this way.
This one's going this way. This one's going this way. This one's going this way. This one's going this way. That way, that. Right. It's shooting stuff off in every direction. Now, the lovely thing is that um that the the parts of the grenade, these parts, they're just going to well, I guess these parts, I didn't draw it perfectly, but these parts are they're just going to go out.
They're just going to leave the back of the rocket ship, right? Um, but these ones, these ones here, they're going to bump into the rocket ship. And when they bump into the rocket ship, well, what happens when one thing hits another?
It's going to push it a little bit, right? And so, these parts of the grenade are going to bump in to the rocket and give the rocket a little bit of a nudge in the forward direction. And the reason that happened was because there was a symmetric explosion in the middle that went in all directions, but the nozzle is only open on one side. So, some of the stuff will go out the back and just continue on forever until it hits something, of course. But some of it will hit the rocket and push it forward. Does that make sense?
>> No, it does. You still have no medium to push over.
>> Which Wait, which part of that requires >> So, you tell me. You tell me. Yeah.
Obviously, a plane works because of thrust.
>> He's not He's not going to address anything I just said.
>> No, no. Listen, a plane works because thrust is pushing off the air, right?
>> Uh, no. Agree.
>> A plane works because it takes because it takes air in and then it shoves the air out the back.
>> Yeah. Because it's pushing off the air.
>> No, it's not pushing off the air. It shoves the it takes air in. It's pushing air inside of it jet engine out the back.
>> All right.
>> That's how it works.
>> So, if there's nothing to push if there's no air or nothing, >> the air isn't pushing the air that it shoves out the back isn't pushing off of anything >> except the plane itself.
>> That's like >> absorbed by it's not pushing up the air.
So, so in instead of just repeat instead of just repeating your thought terminating cliche, why don't you address the uh the diagram that I'm drawing for you? So, I take a grenade >> and I if I took a grenade and I I I put a grenade um inside of a bowl >> like say the bowl is >> You show me you show me you show me a video. You show me a video right now.
You you said you had a video of it working.
>> Hold on. Show me a video.
>> What? Why?
>> Because you're my understanding.
>> You're cutting me off.
>> It doesn't matter how big the explosion, >> mate. You're the one who cuts me off.
>> Okay. So, it Which part of this diagram doesn't make sense to you?
>> I It makes sense, but how can you push off? How can something push off itself when there's nothing there?
>> There. What's pushing off?
>> That's like me saying, "I'm going to stand on a skateboard and push myself."
>> Nothing's pushing.
>> That's like me saying, "I'm going to stand with both legs off." So, if I stand on a skateboard >> Mhm.
>> Yeah. And I push myself, how am I going to move?
>> Nothing's pushing itself.
>> You just said it's pushing off itself.
No, the grenade is exploding and the grenade is pushing.
>> So, there's a grenade in a rocket which all right, which isn't what's happening.
>> There's a grenade in a rocket and No, it's just a lot of thrust, mate. So, you've got a lot of thrust pushing out the back of the booster.
>> What do you think thrust is?
>> I know what thrust is. It may take off.
It may take off. Yeah, but when you get into a vacuum of space, >> hold on. What do you think? How do you think What do you think thrust is?
>> No. How How can you have thrust working in a vacuum of space? Okay. So, are you So, to be to be clear, do you understand that?
>> Tell me you you keep I keep on saying >> I just don't want you to pivot. I just don't want you to pivot, right? And we can we can talk about that in a minute.
>> I'm not pivoting.
>> So, do you think that like if I had a B-shaped thing like see how this is kind of bullshaped here >> and I put a grenade assume assume the bullshaped thing is >> I know I see what you're doing. I see.
>> I'm in the middle.
>> I'm in the middle of a sentence. Assume the bowl is like strong enough that it doesn't break.
>> You put a grenade next to it.
>> They're both floating in space. The grenade goes off. Would the grenades >> Would the grenade push the bowl in the other direction?
>> No.
>> Why not? What part of this diagram is confusing?
>> One thing is in a vacuum, it wouldn't even ignite.
>> Grenades don't need air in order to function.
>> Yeah, but they say there wouldn't be a big explosion in space, was there?
>> Well, that's why that's why I was using shrapnel. I'm not using like >> there's everything don't suck, which don't suck. If they do, >> there's there's shrapnel, right?
>> Might be a bit of shrapnel, but there's no there's no um >> So that's there's nothing that would go in all directions, right?
>> It it wouldn't move. Thrust cannot work in >> Wait, so you don't think >> you don't think explosions can work in space?
>> I mean, is there a test that can prove that?
>> I I bet you I can go find a gun firing in a vacuum chamber.
>> Show me. Um, yeah, possibly. So, but I want to see I want to see that gun moving backwards the other way.
>> You You want to see recoil?
>> Yeah. I want to I want to see I want to see thrust pushing in.
>> To be clear that this is now pivoting.
If you agree that a gun can function in a vacuum chamber, >> it's the same concept though, isn't it?
>> It's pivot to a different subtopic. The point is is if you agree that a if you agree that a gun can fire in a vacuum chamber, >> then a grenade can function in a vacuum.
>> I mean, I don't know. I don't >> Okay. Let me show you a a video of of a gunfire.
>> Really?
>> Jeez. I want I want to see I want to see your concept of a rocket.
>> Um cuz I've got a video of it not working.
>> Also, I've got a video of a drone in a vacuum chamber where it has to land because there's nothing to push off of.
>> Okay, here we go. Um let me just show you really quick. This is from Mythbusters, by the way.
>> Oh, yeah. Typical.
>> Oh, I mean it's a it was a good show.
So here, um, I can't play the audio, but we should be able to see the dial in a sec. Oh, play.
So there. So you can see the dial over there. A little bit hard to see the whole thing.
>> Um, >> here's the fire.
>> I can't put any fires. Oh, what's the recoil?
>> I can't put any video I can't put any videos of me. Um, yeah, because it's on a object. It's held down by an object.
What's what's causing the recoil? Also, by the way, we did just see it fired in a >> probably the kick of the gun.
>> The kick of the gun is recoil.
>> Yeah, that's what I'm saying.
>> So, we agree that the actual mechanism of the gun.
>> Where do you think that is the recoil?
That is the recoil.
>> It's completely different to a rocket.
>> Show me. Show me.
>> It's not completely different to a rocket, by the way.
>> It is. It is.
>> Wait a minute. So, by the way, what do you think causes the recoil here?
>> No. No. Show me the video.
>> What do you think causes the recoil here?
No. Show me the video of the rock.
>> What do you think causes recoil?
>> Um, not sure. Probably the kick of the uh gun.
>> What? What? The kick of the gun is the recoil. What do you think causes it to kick?
>> Yeah, that's what I'm saying.
>> What do you think causes it to kick?
>> The um bullet.
>> What about the bullet kick?
>> Back of the bullet and the gunpowder.
>> Okay, we're almost there. Yeah. Yeah.
So, gunpowder. So, the gunpowder explodes in the chamber, right?
>> Yeah.
>> It forces the bullet out one way. What happens to the explosion that goes in the other direction?
>> But it's just But there's there's um walls in that vacuum chamber. That's what I'm trying to scare.
>> Hold on. What happens to the explo? So, the gunpowder goes off inside the barrel of the gun, right?
>> Yeah. Yeah.
>> Okay. So, some of that explosion pushes forward and that's what carries the bullet outwards, right?
>> Yep.
>> What about the part of the explosion that goes backwards? What happens to that?
>> The gun's not moving. That's what I'm trying to say. I need I need >> What happens to that part of the explosion? Right. The explosion, the gunpowder doesn't know which way to explode. It just explodes in all directions, right?
>> Yeah. Yeah.
>> Okay. So, one the direction that goes out the barrel that pushes the bullet forward. What about the part of the explosion that goes in the other direction?
>> Yeah. I'm just saying that.
>> What What happens to that part of the What happens to that part of the explosion?
What? In in >> Does it just keep going for Yeah. And a gun? Yeah.
>> The one that goes forwards.
>> The one that goes backwards. The part of the explosion that goes backwards.
>> Goes out the um chamber.
>> The part of the bullet goes out the chamber.
>> We're not talking about the bullet.
We're talking about the part of the explosion that's pushing in the opposite direction that expand. Cuz the explosion is just a rapid expansion, right? Part of it goes forward pushing the bullet out. Part of it goes backward. What happens to the part that goes backward?
Um, not too sure.
>> Does it run into anything?
>> I think I think it all takes >> Does it run into anything?
>> The barrel of the gun.
>> Well, some of it's going to go out sideways and that will run into the barrel of the gun. Yeah. What about the part that goes backwards?
>> Don't know. I'm not too keed up on how guns work.
>> So, at least in this firearm, it looks like it's going to hit this part of the gun because the bullet is fired from here. And so, part of the explosion will go out this way. part of it will go that way, but there's a piece of metal in the way, right? There's a piece of metal preventing the explosion from going out the back.
>> And so that explosion hits the gun >> and it pushes the gun backwards.
>> All right, >> that's the recoil.
>> Now, can you get can you get the video that I wanted up? So, we as long as we agree that the recoil of a gun in a vacuum is caused by the explosion pushing the gun backwards, >> then that's what I'm trying to show the video of the rocket working in the vacuum. Not you're just trying. Well, to be clear, this is a device that lets it >> This is exactly the same mechanism, by the way. There's there's nothing different happening.
>> It's not suspended. There's I can see the mechanism there where it's holding the gun.
>> Yeah, something's holding the gun.
What's the issue with that? That's why That's why instead of drifting backwards, it just tilts, right? Because it's being held.
>> It wouldn't drift backwards.
>> So, what do you think is causing it to rotate?
>> It wouldn't kick backwards. The mechanisms it's sitting on.
>> So, see how it kicks backwards?
>> Yeah, the mech. Well, it's sitting on the mechanism.
>> You think that the mechanism is You think that the mechanism is just pulling it backwards at just the right time?
>> Possibly. I don't know.
>> Are you high?
>> No.
>> Okay.
>> I just want you to show me a suspended rocket.
>> Okay. So, do you think that when people are firing firearms that they're faking the recoil?
>> No, I just want you to >> Why does the gun go backwards?
>> Keep saying the same thing.
>> Obviously, the gun goes backwards because the explosive gas is bumping into the the firearm, but sure, I will show you. I will show you. I will. One sec.
>> Please show me the video.
>> Um, this rocket working in the vacuum.
>> Yep. Let me show you.
>> And it it only moves when it pushes off the wall of the vacuum chamber.
>> If it's the same one I'm thinking of.
I'm going to watch it first.
>> Yeah. Hold on. I don't know. I'm just blowing it up. Am I on the right one?
You mean this one, right?
>> No.
>> Rocket in the vacuum chamber.
>> So, there's a rocket.
>> Never seen it.
>> Okay. Well, we can watch it together.
And there's the uh there's Okay. Well, good. We're going to watch it together.
So, you can look at how much thrust there is. The thrust is measured over here.
>> Is it suspended?
>> It's just attached to a thing. See how the thrust is popping up? So it's it's in a vacuum thing.
>> Oh, and look at the thrust. Look at that thrust. What do you mean? It's not Do you want it to be floating?
>> Yeah, there's a there's a a video of a rocket in a vacuum chamber and it only moves when it pushing off the walls.
>> Wait a minute. How is the rocket?
>> I don't think you understand.
>> I don't think you understand. It only works.
>> I don't understand. How is the rocket >> is the rocket floating in the video that you're talking about?
>> No, listen. It's suspended. It's It's held. It's held. So, I'm guessing that's a way which >> So, this is too Is that Is that a weight? Is that a weight? Is that a weight showing how hard it's pushing?
>> Oh, yeah. That's a scale. Yeah. Yeah, that's a scale.
>> Right. Right. So, the thrust is only working when it pushes off the walls of the vacuum chamber.
>> Uh, I mean, that's not true.
>> So, this proves you can see you can see the thrust. You can see the thrust before the uh before the gas has even gotten to the vacuum chamber.
>> Put it to the start. Put it to the start.
>> Yeah, >> you can see the thrust before the gas has even gotten to the end of the vacuum chamber.
>> So, the thrust will the thrust will hit be hitting the back of the um It is a horrible example. It's a horrible example.
>> This is a great example. You can see you can see it.
>> Yeah, the thrust. I know that. I'm saying the thrust will only work when it's pushing off of the walls of the vacuum chamber.
>> But it's not. You can see the gas hasn't made it to the walls yet.
>> There's a There's clearly a wall behind it because obviously otherwise it wouldn't >> You mean over on this side?
>> Yeah. Yeah. Yeah.
>> It's It's not even in frame.
>> It doesn't matter.
>> The gas hasn't made it there yet. The gas hasn't made it there. How could it How How could it be pushing off of something it hasn't touched? It it will it would have pushed it >> except the thrust is happening. Look. So So here the gas hasn't made it over here yet.
>> The gas hasn't made it over here yet.
It's it's not you can see the gases the gas if the extent of the video.
>> I'm sorry. The extent of the gas is here.
>> It's not over here yet. And yet there's still thrust that's measured.
>> So >> at this point we have now demonstrated two things. A firearm has recoil in a vacuum chamber and a firearm functions in a vacuum chamber.
We've shown measured thrust from a rocket.
>> You didn't show me the rocket moving in space.
>> You didn't show me the rocket moving.
>> You'll think it's fake if I show you a video of that happening. So, it's not worth showing you that video.
>> I want to show you that that the video of the suspended rocket does not move.
>> It would move instantly.
>> So, this model seemed like a perfectly good model.
this diagram, you have part of the explosion that pushes off the front of the rocket, pushing it forward, and you have part of the explosion that just goes out into the rest of the world. And so the >> Okay, you understand that the shrapnel here, >> there's nothing there. Yeah, but there's nothing there for it to move.
>> There's nothing there for what to move the explosion.
>> The rocket >> The rocket is being pushed by the shrapnel.
>> Now show Now get the video up.
>> The rocket is being Wait, hold on. Do you not understand this diagram? send you the link. I can send you the link.
>> Okay. Does this diagram not >> send you a link and it will destroy your It will destroy your idol.
>> Is this diagram like meaningless to you?
Do you just >> makes sense, but it doesn't work. It doesn't work.
>> Which part about it doesn't work?
>> All of it.
It still need It still needs It still needs a medium to push on. There's no medium.
>> So, the rocket the rocket is being pushed on by the >> uh by the >> by the shrapnel. No, not I haven't said that once. It's being pushed by the shrapnel, right? The shrapnel explodes or the the grenade explos. The It's attached to the rocket.
>> No, it's not attached to the rocket.
>> Yeah, but the thing that's causing the explosion is >> No, it's just a grenade.
>> The grenade is not attached to the rocket.
>> So, what's throwing the grenade the the frost out? Let's just say it frost cuz I know it's >> So, the grenade is, you know, imagine imagine somebody is just like, and obviously this is hard to draw, so I'm not going to draw, but imagine you have somebody that just put a grenade outside >> outside of this rocket.
>> Yeah. And then they very very quickly let go. Like they pulled the pin, they let go. It's just floating there in this little cup shape, right? It's just floating there in this little cup shape.
And then it explodes.
>> Where does the shrapnel go?
>> It's not going to go far in a vacuum, though, is it? It's pushing >> Wait, what's going to stop the shrapnel from going in every direction?
>> Because you still need a medium to be pushed off of. What's going to happen?
Do you even >> So there is an explosion. The shrapnel is going to go in all directions, right?
>> So you think Frost works like a grenade?
>> Can you answer the question about the grenade?
>> It's not a grenade. It's a It's a [ __ ] booster.
>> We'll get there. I promise we'll get there. But if you don't understand this, there's no way you're going to understand how rockets work, >> right? I just want you to show the the uh video of the actual rocket deflection. I just need to confirm that you understand what what's going on with this diagram.
>> There's a video that proves you wrong.
There's a video that proves you wrong, but you won't get it up cuz you know just >> So, to be clear, you're just not going to address this diagram, right?
>> I know the diagram, but it's still not how rocket works. But listen, you look you won't you won't get the video analogy.
>> You won't get the video up.
>> I just need you to we can do whatever you want. I just need you.
>> A grenade a grenade would push an item, but not in a vacuum of space. Why wouldn't it work in a vacuum?
>> Because there's no medium to push off of.
>> There's no medium for what to push off of.
>> The grenade explodes.
>> The rocket's not pushing off.
>> Exploding in the booster would push the rocket cuz it's pushing both ways.
>> A grenade explo exploding in the engine >> would explo would push the rocket. Yeah.
Or sorry, sorry. In the rocket muzzle, I should say.
>> That's not how that's not how a rocket works.
>> Do we But do we agree that that that is true that that would happen?
>> I mean, if you had enough grenades, it might move.
One grenade would make it move a little bit if it's a big rocket and a small grenade, right?
>> But there's But thrusters only work by pushing boost out the back.
>> Okay. So, do we agree that if you put a grenade in the bell of an of a rocket engine and you exploded the grenade that the shrapnel from the grenade would push the rocket forward?
>> Um, I can't tell you because we don't have a big enough vacuum chamber to prove that.
Maybe. Maybe. Yeah. If if I had a grenade next to next to something, it would push it.
>> It would if I had a grenade. Yeah. The explosion would push it in on Earth. But I don't know about in the vacuum of space because it's a vast open vacuum.
>> So to be clear, we So a grenade is a simple way that you can make a grenade is just put a bunch of gunpowder in a sealed container and then >> pop it. Right.
>> I know that.
>> And gunpowder can go off in a vacuum.
We've >> a test with that.
>> Well, we can show you the video of the rocket that doesn't work.
>> So we've been over this. Gunpowder does work in a vacuum chamber, right?
>> Right.
>> Yeah.
>> Whether or not it's sealed is irrelevant. It's still vacuum.
>> Yeah. We got obviously we got people >> works in a vacuum chamber.
>> Gunpowder. You do you think that there are tests of gunpowder not working in a vacuum chamber?
>> No, I'm saying the test that I want you to show what you want.
>> I'm I'm happy to show whatever I'm happy to show whatever you want.
>> Please do.
>> Um but first, but we have to finish this first, >> right? So, we agree gunpowder can explode in a vacuum chamber. I showed you a video of a firearm going off in a vacuum, >> right? So, that means that gunpowder will explode, which means it's going to cause it's going to cause an expansion of gases or shrapnel or whatever it's whatever is surrounding the explosion is going to be pushed out. That'll happen in a vacuum chamber. Now, if you put all that gunpowder inside a metal ball and then you detonate that gunpowder, trapnel will go in all directions regardless of whether it's in a vacuum or not.
Make sense?
>> All right.
>> Yeah.
>> Okay. So, if it's in a vacuum, >> the shrapnel can explode >> and go out in all directions.
>> There's nothing stopping it from moving.
So, it's not just going to stop suddenly.
>> Yeah. I I understand it.
>> And so, it can push the rocket.
>> How a rocket works.
>> This is how a rocket work >> at a very basic level. Yes. Literally, >> they they mix they mix fuel and they mix oxygen in the combustion chamber and then they ignite it and some of it goes out the front, some of or some of it pushes the front and the rest goes out the back. It's literally how a rocket works. Yeah.
>> Okay.
So, you don't need nothing to push off of. It just pushing off itself.
>> Well, no. You're basically causing an explosion and the explosion pushes you forward, >> which is it pushing off itself.
>> Well, the explosion is like not it's not like attached to the rocket.
How is it not attached to the rocket?
>> You think that like the gases are the gases aren't contained within the rocket? It's just like an open vent.
>> They are, but >> No, they're not. I mean, but it's just like an it's like an open thing. You feed the fuel in. And they're then they're just in there. They're just in the chamber hanging out. They're not like >> they're not like attached to the rocket with strings or with bolts or something.
It's just sitting inside the chamber. I Everyone's saying they don't understand.
I understand, but I'm just saying there's a video that proves this all wrong.
>> All right. What's the video?
to search um rocket in vacuum chamber and you can see you can see it and I I don't I can't really see what you're typing so I don't know.
>> I'm just typing in vacuum chamber.
>> Oops. Sorry. Let me try and find the link.
>> You'll see it looks like kind of like a Yeah, that's it. Rockets in >> Oh, that's not a rocket though.
>> It is a rocket.
>> Oh, it's not. It's a syringe. I thought we were talking about rockets.
>> Yeah, which is which is with rocket fuel.
>> No, it doesn't. There's no rocket happening in here. It's just a syringe that's having the air pushed out.
>> No, it's it's literally >> still how works.
>> No, you can see you can see but you can see >> you can see thrust. It only works when it hits the wall of the vacuum.
>> So, we can play this. We can play this.
We can play it sped up if you want.
>> Uh, >> but if it if it was if it was to be real, it would move instantly cuz you can see the explosion. Yeah. See, it only moves when it hits the wall of vacuum.
>> Wait a minute. So, why do you think Hold And I should slow that down a little bit >> cuz it was it was a little bit fast.
>> So, do you know what's happening right now? See? See? Oh, sorry.
>> We can't see it.
>> Yeah. No, no, that's my That's my bad.
Okay. So, what So, what's happening here? What's happening here?
>> So, we have So, okay. So, he's using a laser to ignite something, I guess, right?
>> Yep.
>> Okay.
>> Which is the explosion?
>> Well, it's not ignited yet, right? Okay.
So, see we have a little puff of air that comes out, though. It's not ignited yet.
>> You can still see the stuff inside.
>> It's just a little smoke.
>> Slow.
>> It's just a little smoke. Oh, no. It's not slow, >> right? But it should be moving right now cuz that's the thrust.
>> It's So, the amount of thrust would affect Hold on. Hold on. The only amount of thrust that there is depends on how quickly the explosion is happening. Right. So, right now, it's just a little It's just a little something burning. It's just smoke basically drifting out. And you can see how slowly the smoke is drifting out.
It's just like kind of just kind of like dribbling out, right? And then >> so slow.
>> Hold on.
>> It only See, watch that again. It only works when it hits the wall.
>> Hold on. We're going to We're going to step by frame by frame.
>> Explosion was really able to push something in a vacuum, then it would move instantly.
>> Why isn't it Oh, one sec. Okay, hold on.
I'm going to step frame by frame.
>> I don't know why it's not stepping letting me step through frame by frame.
I just want to go to like the the frame right before because we can see this happening.
>> Wait, hold on.
>> Then it hits the wall, then it moves.
When it hits the wall, it moves.
>> Hold on. Hold on. We're going to go through Why is it not moving instantly?
>> It's just smoke drifting out. The ignition hasn't happened.
>> So if if there was no that it has happened, that's why the smoke's coming out.
>> So things can smoke without igniting, right?
>> So slow.
>> Do you understand that things can smoke without >> Do you understand that things can smoke without igniting? So, what he's burning this is slowed right down.
>> I think he's burning um flash paper.
>> Yeah, >> right. Flash paper. Flash paper is not a slow burn.
>> It should move.
>> Flash paper is not a slow burn. We I just want to see the actual uh ignition point though. It's It is moving a little bit right.
>> There's the ignition >> right there. You can see it happening.
>> Oh, yeah.
>> The ignition is right there. You can see >> happens after it moves. Yeah. Well, it's it's moving a little bit and but the actual ignition >> happens after it moves.
>> I mean, like you said, there's a little bit of motion, but the actual large swing that happened.
>> Watch it. If you watched it in real time, you would see that ignition just take so long.
>> We're watching it frame by frame, right?
So, the ignition the ignition is not the ignition hasn't happened yet, >> right? So, it's just it's just moving a tiny little bit. There's just a little bit of stuff leaking out, right? And then >> it's hit the It's hit the wall.
>> So why is it moving? Wait, hold on. Hold on. Why is it moving at all before it's hit the wall?
>> It hasn't. It It It hasn't moved.
>> It is. We can see it moving.
>> Go back. No, you need to zoom out more.
The smoke. What do >> you mean zoom out more?
>> So we can see the whole video.
>> What?
>> It zoomed right in. So you can't see.
The smoke's already in the wall. You're too far ahead.
>> Zoomed out.
>> You're too You're too far ahead. Do you want me to make Yeah, like that. That's it.
>> Okay.
>> No, no, that's it. Yeah, like that.
That'll go back. Here we go. Okay. So, here we have So, we have a little >> smoke hits the wall. There you go. Smoke hits the wall, then it moves.
>> Smoke hits the wall. Hold on. You can see that.
>> Hold on.
>> We're going to play it slowly. I just want to get to the point, right? Okay.
So, here he's not he hasn't played it yet. And I want to step step through this little by little. Okay. So, here the the laser hasn't turned on yet. It's not moving at all.
>> Right.
>> Y I am I am stepping forward. It's just slow. Um, >> so we're stepping frame by frame.
This should be working.
Why isn't it Why isn't it stepping?
>> Or maybe it is. Oh, it is stepping. It's just slow.
>> No, it doesn't hit the wall before it starts moving.
>> It It hasn't even started. It hasn't even started burning.
>> No, no, I was reading the comment.
>> Okay.
>> Okay. So, hold on. I need to go back a little bit because the laser's on.
Okay, laser's about to turn on. Right, laser's on. So, now we can start things.
In principle, things could start heating up. Right.
>> Right.
>> So, let's skip forward a little bit.
Frame by frame.
laser is now on the thing.
I guess it's going to take him a few frames to actually get it right.
You can see it like it is actually stepping forward. It's just slow. I think I think it's stepping forward. I see stuff changing a little bit. There we go.
I just don't want to jump too far. Okay.
So, here we can see a little bit of smoke now, right? And so, this is just a thing burning slowly, right? It's not It hasn't ignited, >> right? Things can give off smoke without burning.
>> You know how quick this happens in real time.
>> I know. That's why we're watching it slowly, right?
>> Right.
>> So, what we're seeing here is the beginning of ignition. It hasn't ignited yet. You know, when you heat something up, right before it burns, it'll start smoking.
>> That's what we're seeing.
>> Yeah.
>> Right.
>> So, we're seeing smoke just kind of leak out, but it's not an energetic reaction.
So, it's not going to do much. It's not push. It's not a big expansion of a whole bunch of gas. It's just smoke essentially leaking out.
>> Okay.
>> And we can see we can see that smoke leaking out. It's >> Do you want to believe it's just smoke leaking out?
>> I mean, clearly the ignition hasn't happened yet, right?
>> It's happened. This is very, very slowed down.
>> Yeah, I know. The ignition hasn't happened yet. Smoke is just leaking out.
>> I believe the ignition's start literally just started to happen. It's like an explosion, like you said. You can see the explosion happen on the inside when it happens.
>> We can we can skip to that part if you want.
>> Why don't you just Why don't you just keep skipping it back and keep watching it instead of doing it like lagging?
>> Well, I'm trying to do frame by frame, but YouTube's being annoying.
>> It's it's too laggy.
>> I mean, you can see you can see it moving frame by frame, right?
>> Oh, just just keep replaying it and see see what people think.
>> So, you don't want to look at it frame by frame. You you don't want to be like careful and do a like actual analysis.
It's It's probably easier to watch it just by watching it because it's slowed down anyway.
>> So, see how it See how it's bright there?
>> That's the laser.
>> That's the laser. Yeah. Yeah.
>> So, what we're So, and we we'll see it puff out in a minute.
>> It's puffed out already. It's already gone. That's why it's moving. Watch it again. You'll see it move.
>> Yeah. There we go. Okay. So, this is frame by frame. So, what So, what you're seeing, the reason why the laser gets suddenly so much brighter is because the ignition has started.
I mean, it's bright the whole time, but >> No, it's not. It's obviously less bright here.
>> Obviously less bright.
>> Just go back and watch. Let Let it play.
Let it play.
>> Oh, because you don't want to be careful. It's obviously more bright here.
>> No, it's easier to see it just by watching it.
>> It's easier to see it by not playing it frame by frame, I guess.
>> Yeah. So, >> it's it's it's easier it's easier to It's easier to analyze it when you're not looking at it carefully.
>> You can admit that, though. No, it has nothing to do with the wall.
>> It's only moving.
>> Doesn't have nothing to do with the wall.
>> It has nothing to do with the wall.
>> Why does it not move straight away?
>> Because it's just leaking out smoke.
>> Why does it only move when it Why does it only move when it hits the wall?
>> It doesn't.
>> Well, watch it again. Watch it without >> We have >> skipping through it. You'll see. No, watch it.
>> I'm not skipping. I'm literally going frame by frame.
>> No, let it play because you can't see anything while it's doing this.
>> Okay, here we go.
>> Watch it. And you tell me it doesn't hit the wall, then move. So, to be clear, it's a little it's moving a little bit.
So, the gas is about here at this point.
>> Gas is about here now.
>> It's already moving.
>> Yeah, it's hit the wall.
>> No, it's not. It's here.
>> It's the wall.
>> What do you mean you saw it hit the wall?
>> Just keep Just keep replaying it. Stop pausing. It's not pointed directly at the wall. You understand that? Actually, let's >> still pushing off of it. Of course, it don't touch.
>> It's not It's not touching the wall yet.
>> It doesn't need to be point. If it's not touching the wall, how is it pushing off the wall?
>> It's It has touched the wall. You're not letting it You're not You're not >> It's literally playing.
>> It I just slowed it down.
>> Be have a little bit of patience.
Okay. So, the smoke is here at this point.
>> Yeah.
>> Not that that's not touching the wall.
We agree it's not touching the wall.
>> It's here at this point. Still not touching the wall, >> which is right next to the wall. Look at the shadow. It's It's literally not right next to the wall. What shadow?
>> Look at the shadow at the bottom.
>> That's not the shadow of the smoke.
>> All right, let it play then.
>> Oh, well, it is, isn't it?
>> So, here we have So, so here we have the shadows over here.
>> Yeah, there you go. Now, it moves. So, you can admit it touches the corner and then it moves.
>> So, it doesn't move the whole time when it's >> Hold on. Just vacuum. There's no water.
>> To be clear, it is It is moving at this point.
>> It wouldn't work. It is. It is moving at this point.
>> It's not.
>> It is. We can go through it frame by frame.
>> Yeah, because the shadow the shadow is at the corner.
>> It only moves when it hits the wall.
>> So, okay. So, can you explain to me what is it about what is it about the smoke that suddenly kicks it like this?
>> Because you can see that's when the frost hit a physical object. thought the only I thought that I thought that it hit the wall here.
>> So if if there was no wall so I thought it had hit the wall by now. Had it hit the wall or No, >> it wouldn't it wouldn't move.
>> Has it has the smoke hit the wall at this point?
>> I don't I don't know where we are in the video.
>> Okay, but we can we can rewind a little bit. Yeah, >> we're going to pay attention to the smoke.
Okay, >> I the the video is playing it's playing in slow-mo.
>> Okay, >> we can see a little bit of smoke. It's actually kind of hard to see. There's a little bit of smoke there. Okay, according to you, it has now hit the wall, right?
>> No, not just yet.
>> Yeah, I mean, we just we just watched this. What do you mean not just yet?
>> Watch it when when it just watch it when it starts moving and I'll >> No, we're going to we're going to watch it. We're going to watch it when we're going to we're just going to believe what you said. Okay. We're going to trust what you said.
>> Okay.
>> We are going to look at the exact slow.
>> It is. Yes, I know. I know. It's very very slow.
>> So, it's not going to instantly move as soon as it touches the wall.
>> What's not instantly moving?
>> You doesn't it you know it's not going to instantly move as soon as it touches the wall.
>> Why not? That's when the thrust happens, right?
>> It's so slow because the video is so slow.
>> But that's when the thrust happens, doesn't it? Okay. So we have we have some smoke coming out.
>> You think you think it should move as soon as >> So the smoke is there, right?
>> Yep.
>> And then now the smoke now the smoke's there. According to you, the smoke is there. It has hit the wall, right?
>> It should move by now.
>> According to you should move by now.
>> According to you, this should have been moving by now.
>> Thor, according to you, this should it should move now, right? Because it's hit the uh it's hit the back of the >> Okay, >> let it play then.
>> Yep.
>> Now it's moving. Why does it take so many frames?
>> Why does it take so long? the video cuz you've got the video slowed down anyway and the video is so slow anyway.
>> Well, the video is not in slow mode.
>> It should move.
>> The video is not in slowmo. Like the original video is not in slow. I'm just slowing it down by a factor of four. So, the point is is that it actually doesn't move until >> the original video is in slowmo.
>> It's It's literally not.
>> It is. It's sped up at the end.
>> What?
>> This is slowed down.
>> That's where they speed it up.
>> See, >> that's that's real time.
Yeah, because they've replay they put it back up to speed there.
>> Where where is where is it in slow-mo?
>> There's no slowmo there.
>> All right. See See how All right. I thought it was in slowmo.
>> Okay. So, the point is is that >> is that according to your model, there is some delay between the smoke hitting the corner and the thing actually moving.
>> So, what accounts for that delay?
>> What accounts for that delay? It should move.
>> But for your model, it should move instantaneously as soon as the >> in my model. In my model, the amount of motion depends on how how big the thrust is.
>> And the thrust.
>> That's true, Toby. That's what I do in my spare time.
>> And the thrust is not large. Uh the thrust is not strong until the combustion actually happens. Right.
>> Right. When we see smoke just drifting out, that's not com that's not that's like the full combustion. I got to go anyway.
>> The flight the burn paper, whatever it's called. Right. It's just not.
>> It was nice. It was nice having It was nice having this debate.
>> Oh, he's running.
>> I'm going gym.
>> Okay. Go to the gym.
>> Come back. We'll have another >> go to the gym. And once while you're at the gym, think about how thrust think about the the grenade. Okay. And explain to me why that won't work in a vacuum.
Okay.
>> I'll be thinking about that grenade, man.
>> Think about the grenade.
>> All right. Take care.
>> Take care.
>> Take care, mate. Bye. Dr. Blitz the quant in the realm of science all like breaks through fears.
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