No video :(

Rocket Engines Explained

Подписаться 26 тыс.

Просмотров 101 тыс.

50% 1

How do rocket engines work? What makes them work in a vacuum?
In this video, we talk about the basic physics behind how a rocket engine works. We walk through two different ways to help understand rocket engines. The first looks at Newton's third law of motion, where every action has an equal and opposite reaction. Then, we discuss the conservation of momentum, and how propellant is used to push a spaceship forward.
After understanding the basics of rocket engines, we talk about some of the different types, focusing mostly on chemical rocket engines (such as the space shuttle main engine, raptor engine, merlin engine, and BE-4). The last topic covered in this video looks at the design of rocket nozzles, and how at different surrounding pressures, the nozzle design should be changed!
Thanks for watching! And consider subscribing if you enjoyed this video!
Thank you to all my Patrons that help support this channel! You all really help make off of this happen!
Twitter: / wolf_martian
Facebook: MartianWolf
Patreon: / martianwolf
Heading Home by Nekzlo @nekzlo
Music provided by Free Music for Vlogs • (Free Music for Vlogs)...
------------------------------
• Contact the artist:
@nekzlo
nekzlo
Nekzlo_Music
open.spotify.com/artist/75LSn0DiQyH6LnHBT8fOEK
------------------------------

Опубликовано:

15 авг 2024

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист

Посмотреть позже

Комментарии : 150

@MartianWolf 4 года назад

Thanks for watching, and I hope you learned a thing or two about rocket engines! 🚀

@JesusChrist-gc6mm 4 года назад

Thank you!

@papalegba6759 3 года назад

i learned you don't understand any physics at all.

@fromnorway643 3 года назад

@@papalegba6759 That sentence would make more sense if you replaced the "you" with an "I".

@papalegba6759 3 года назад

@@fromnorway643

@rv.9658 3 года назад

Hi, what exactly is NASA'S Glenn Research Center?

@mikedavies5582 2 года назад

This video was super good. It made me think of how teachers in high school and how they usually could play the the entire audience by explaining the fundamentals and then going on from there. Just being really aware of who is watching the video or who is the target audience. Well done.

@summerlakephotog8239 4 года назад

I most definitely want to learn about the raptor engine.

@fieldadmiralspartanryseb-8293 4 года назад

The Velociraptor burn looks so clean compared to any other rocket

@timoheinz2879 3 года назад

@Mo Thunder They are talking about SpaceX's Raptor Engine that powers their Starship

@Earthinawarshell 3 года назад

@@timoheinz2879 yes I want to learn how they make raptor engine

@whimbur 3 года назад

Everyday astronaut has an amazing video about it

@RAJEEVSHARMA-gr3vb 2 года назад

@@whimbur can u show us that bro

@dosomething3 4 года назад

Derivation of conservation of momentum: Assuming: F=ma Given: F=0 Therefore: ma=0 Expanding a: a=(v2-v1)/(t2-t1) Plugging in expansion of a: m*(v2-v1)/(t2-t1)=0 Multiplying both sides by (t2-t1): m*(v2-v1)=0 mv2-mv1=0 mv2=mv1 Which is conservation of momentum.

@StupeCheeze 2 года назад

ok, I doubt anyone under 5th grade or something would understand this.

@sergei_gruntovsky 4 года назад

Finally, a new video!

@MartianWolf 4 года назад

More to come soon!

@chadnigabyte 4 года назад

This Guy Deserves More Sub And Views Such A Nice Guy And Content Also

@MartianWolf 4 года назад

Thank you! I'm happy to create these educational videos!

@caesar7978 3 года назад

Kinda feel like making my own homemade working model rocket...

@AHMED-ly2ml Год назад

Can't be too hard, I mean it's not rocket science.... Oh wait ..

@jamieoglethorpe 4 года назад

We need an explanation of rocket engines at this level. Tim, the Everyday Astronaut, has excellent videos that dive deeper.

@MartianWolf 4 года назад

Tim’s videos are truly amazing! He goes into great detail and clearly explains a lot of the concepts

@titan1286 4 года назад

Second, you deserve more subscribers

@MartianWolf 4 года назад

Thank you! I'm just happy to share fun information about space and tech

@titan1286 4 года назад

OMG YOU REPLIED YOU ARE AMAZING AND I LOVE YOUR VIDEOS 👍👍👍👍👍👍❤️👍❤️👍❤️👍❤️👍❤️👍❤️👍❤️❤️

@ManojSaminda 3 года назад

like your simplicity, so everybody can understand with great explanations.

@Markle2k 4 года назад

Excellent explanation.

@pilotodehelicoptero4700 4 года назад

Very goog explanation! Congrats from Brazil!

@hellinterestingproductions4710 3 года назад

Does the shape of the rocket engine affect the thrust?

@nerdofculture4385 2 года назад

yes, the thinner the nozzle, the faster the fuel exhaust is gonna leave the engine.

@SMHman666 2 года назад

Hell....Prod...... You've probably already looked this up but yes, the size and shape of the combustion chamber, nozzle and the ratio of the throat all affect thrust.

@AbdoZaInsert 4 года назад

I don't have time to watch your video. But i just came to say: Keep up your awesome work, You're really one of a type in the making of space related videos.

@neerajsoni1310 4 года назад

Amazing rocket science info

@danielbaek960 4 года назад

Hi! i love your videos!

@MartianWolf 4 года назад

I'm glad you like them!!

@cuceofficial6777 3 года назад

ur very underrated i gotta say your vids are very interesting and helpful so people can learn stuff about space rockets etc love the content keep up the good work man (btw sorry for my bad English its my third launguage)

@admindude2728 4 года назад

Good video!

@suweno16 4 года назад

He bacc guys

@royalsaiyanelite198 3 года назад

Comparing rocket thrust to standing made the most sense to me and I've been researching this all day

@whatever361 2 года назад

Thank you so much it was so intersting

@CobaltEngineering Год назад

This helped me understand engines a lot more, thanks!

@gbengaomosola5577 4 года назад

I love your class. Its educating. Will love to be part of subsequent classes

@PassportGaming 4 года назад

Would love it if you streamed Starship hops and launches whenever they happen 🚀

@MartianWolf 4 года назад

I'll have to look into livestreams, I've never done one before. I know that a bunch of other RU-vidrs have excellent coverage of the events as well! Like Everyday Astronaut, Lab Padre, I Need More Space, and others!

@cyclenut 3 года назад

you took what I already knew, but made it much clearer. Thanks!

@markharkey3279 3 года назад

Thank you for this video! You’re very knowledgeable and a great presenter. I’m now a subscriber.

@dilipgandhi7012 2 года назад

It's a pretty cool video...and good knowledage on rockets tech.

@worldkeyvideo9080 2 года назад

I didn't understand how rocket nossels work until this video.

@risingmoon893 3 года назад

0:02 SpaceX Raptor, 0:20 Rocketdyne Rs-25

@Corruptedd 2 года назад

Awesome video, i am here before 1M subs that will happen in 2 years ( i am here from 2024 and am named Ronald )

@fatimaz1332 3 года назад

The first time I've heard someone saying sir Isaac, the polite guy

@SG-SilverGaming 3 года назад

Nice one

@autolab8538 2 года назад

Helpful

@creativityshow7566 3 года назад

Good video

@bakapuramarketing8285 2 года назад

Very good

@vibeduck4934 3 года назад

helped me wrap my head around some of this thanks

@srideviroshayya2240 2 года назад

Bro I learned a lot you explain really good

@mimavsavasant2308 3 года назад

thank you so much this video is really helpful

@davenitro31 3 года назад

very informative thank you!

@shivaninarsina666 3 года назад

Great work!!

@sreyaharish4113 2 года назад

Thankyou for your effort 😀

@danielvillarreal5180 3 года назад

loved it, thank you.

@ninwithabin2683 3 года назад

thanks very clear and easy to understand :)

@suyashpurwar8310 3 года назад

Thank you! Please make more such videos

@gamercool6164 2 года назад

thanks bro

@treygoodman9272 3 года назад

Thanks you

@limabravo6065 10 месяцев назад

If high school students don't know anything about newton's 3rd law then that's a problem

@stuartgray5877 Месяц назад

When I graduated High school (84) PASSING Physics was MANDATORY for Graduation. NOW we are lucky if kids can read at a 5th grade level.

@manjirasaraekanayakaalphys9256 3 года назад

Thank u very much sir.you are a talented teacher and so cute.good luck😊❤❤

@martinkauko5742 3 года назад

Physics is a masterpiece

@suyashpurwar8310 3 года назад

A series on chemical engines would be too good. Include a bit of maths and aerodynamics as well if you find it necessary.

@a_dreamer8612 4 года назад

hes back!

@zaidahmed5464 4 года назад

4:44 *the mass not the size well done video keep it up

@MartianWolf 4 года назад

Thanks for pointing that out!

@gabepaul3911 3 года назад

2:04 That voice crack tho...

@joseph-mariopelerin7028 Год назад

when i was a kid, every time i farthed, i was feeling propelled forward... i know, i should of become einstein...

@Johnadams20760 2 года назад

this was fantastic. i am wondering, as to how do you control rockets speed /vectors etc. direction /velocity in a vaccum to speed up , change direction slow down and land on the moon and such things. how does that work? i loved this video!

@smarty9516 3 года назад

Want a video on plasma powered thruster

@tyronbopape3739 2 года назад

why would someone get bored when you get to the conservation of momentum that is where the video gets interesting

@SuperCartoonist 3 года назад

I'm only here looking for a Dr. Stone comment. Has anybody read chapter 200?

@futuretechnology7679 Год назад

But how does a rocket propel in space, if space is a vacuum, there is no atmosphere, and no air. So, what does the thrust propelled against?

@JackKowalewski 11 месяцев назад

The interior wall of the nozzle. That's same as in the atmosphere.

@futuretechnology7679 11 месяцев назад

@@JackKowalewski Then where is all of the fuel stored? It is amazing that people actually think that Newtonian Physics would apply in Space. That makes no sense, and space travel using primitive rocket engine technology is a hoax.

@michaelmoore8744 2 года назад

Is there any video of rockets actually firing in space? I understand the concept of the pressure effects on propulsion, but i actually have never witnessed rockets in space. In this day and age there should be no problem making video of that.

@SMHman666 2 года назад

M Moore There are many videos of that. The Saturn launches, Space X and ESA's launches all show rockets working in a vacuum. There are vids of cold gas thrusters also which orient the craft.

@LincolnChamberlin 4 года назад

There were several errors in this video 1a) 2:33 breaking Newton's 3rd law wouldn't mean that you would push on the ground harder than the ground push back, ex you push down on the ground with the 3 Newtons, but the ground pushes up on you with 7 Newtons 1b) 2:45 the forces will always be equal and opposite, even if not in equilibrium. Not being an equilibrium just means it will change over time 2a) 4:55 momentum will be conserved in any closed system, regardless of whether energy is dissipated 2b) 5:45 momentum is dissipated into the environment, not into energy. they're two different things keep them straight

@MartianWolf 4 года назад

Thank you for the comment, these are all correct. I will be more cautious with an explanation in the future

@suyashpurwar8310 3 года назад

Sir please make more detailed videos on chemical engines

@dewiz9596 4 года назад

Sit on a wheeled chair, throw medicine ball at wall. Chair, and you, go in opposite direction. Rocket explained.

@norb3695 3 года назад

Oh yea this is big brain time

@scholarshiphub3273 2 года назад

Thanks for this informative video I'll like to join online class conducted by you; if there's any

@arthurbridenstine225 Год назад

You are very lucid.

@jamesharford9788 3 года назад

The fun fact Martin Wolf mentions is about two concepts that are mathematically the same? What is the second concept?

@Wildwoodblog 4 года назад

Excellent presentation. Is it scripted or off the cuff ??? No matter. I'm on board.

@MartianWolf 4 года назад

Thank you, I’m glad you enjoyed the video! And I have an outline that I construct ahead of filming, but not an actual script.

@JP-mn5bs 3 года назад

I think you should do some research on actual thrust in a vacuum. Math is great, but real experiments often produce different results.

@stuartgray5877 3 года назад

Sorry but REAL EXPERIMENTS have shown MILLIONS OF TIMES that rocket propulsion works BETTER in a vacuum than it does in atmosphere, JUST AS the Tsiolkovsky rocket equation predicts. the company I work for buys dozens of monopropellant thrusters a year from MOOG Corp. (google them). We test EVERY SINGLE ONE of them IN A VACUUM and verify they produce the thrust predicted by the Rocket equation. Now quit spreading lies like an imbecile.

@kitcanyon658 2 года назад

I agree. Thus, you should do your own experiments.

@thilanthiwickramasinghe9587 2 года назад

Ah so thats how life also work.When you push your past behind you,you move foward in life huh🤔🤔

@Ricobaca 2 года назад

The video starts at 9:28

@nighpaw4651 2 года назад

I've never seen anyone saying the "every action has an equel and opposite reaction" in relation to karma

@straaths 3 года назад

Why do we combust/burn the fuel? We could just release the gas. I imagine combustion/burning gives us somehow more energy. But I would appreciate details. Details about 'explosion' vs 'burning' etc.. thank you

@kitcanyon658 3 года назад

It isn't just the mass that you expel out the nozzle that is wanted. It is the momentum, which is mass times the velocity of the mass. We get supersonic gas speeds by combusting the propellants at high temperature.

@fromnorway643 3 года назад

We could in principle store the gas at very high pressure and release it without burning it (a cold gas thruster), but that would require very strong and thus very heavy gas tanks, making the rocket much less efficient. Much better to store the gas as a cold liquid in thin-walled lightweight tanks and produce the high pressure when the gas is burned in the rocket engines' combustion chamber.

@4_years_left 3 года назад

So it has nothing to do with the exhaust fuel energy striking the top of the combustion chamber? It's all about the energy pushing out the back, creating an equal opposite force?

@stuartgray5877 3 года назад

- "It's all about the energy pushing out the back, creating an equal opposite force?" YES. because PUHING OUT THE MASS of the exhaust creates an "EQUAL AND OPPOSITE FORCE"! one object CANNOT push on another object WITHOUT FEELING THE SAME FORCE. Per Newtons LAWS a "Force" CANNOT OCCUR ALONE, they MUST OCCUR IN PAIRS! You DO know about Newtons LAWS right?

@papalegba6759 3 года назад

@@stuartgray5877 a rocket is one object, chatbot stu. and a gas expanding into a vacuum creates no force.

@fromnorway643 3 года назад

@@papalegba6759 Do you think the recoil of a gun works because the bullet pushes against the air in the barrel or outside it? No, a gun's recoil would be the same in vacuum, or maybe even slightly more since there wouldn't be any air in front of the bullet restricting its acceleration. Rocket engines do in fact work _better_ in a vacuum, something already noted by the Germans with their V2 rockets during WW2.

@papalegba6759 3 года назад

@@fromnorway643 a rocket is not a gun, crazy chatbot sockpuppet guy.

@fromnorway643 3 года назад

@@papalegba6759 So, ejecting up to several _tonnes_ of hot gases per second at 3-5 times the speed of a rifle bullet does not produce a recoil? Please explain that!

@Whytho2000 Год назад

Where do the forces/thrust act in rockets? If I were floating in space and threw a tennis ball like an engine throwing exhaust, the ball and I would fly apart. The ball I threw would impart forces to me THROUGH my HAND and vise virsa. But because my hand is throwing only a tennis ball, the forces are easily transferred and my hand wouldn't be crushed. The question I'm left with is, if a rocket engine can generate millions of lbs of thrust, how does that delicate rocket nozzle handle millions of lbs of force? Are the forces just acting on the combustion plate? Is the entire rocket mounted to that extremely complex piece of tubes? Where do the forces act?!

@stuartgray5877 Месяц назад

The "Throat" of the rocket nozzle is VERY STRONG and can support multiple time the weight of the rocket above it. The Nozzle is also a LOT stronger than you think. We think they look flimsy but not when "inflated" with 3000 PSI of gas pressure.

@Whytho2000 Месяц назад

@@stuartgray5877 Thank you, wish I could see a section view, and could see where the forces are in the rocket. Its just so mind blowing.

@anishaditya4400 3 года назад

Umm,is it the size or the mass...

@SMHman666 3 года назад

anish.....It's the mass of an object. You can have a huge sized object but with little mass.

@ShakespeareanWannabe 3 года назад

Newton's Third Law question - when we throw something (like a pen) why don't we get pushed backwards?

@SMHman666 3 года назад

Shakespear....because the mass of the pen is so small. Technically you do but it is not noticeable to us.

@ShakespeareanWannabe 3 года назад

@@SMHman666 Thank you! I had a student asking, so they'll be happy to know the answer.

@stuartgray5877 3 года назад

@@ShakespeareanWannabe Ask your student: If you were sitting, motionless, in the middle of a perfectly frictionless ice rink, could you GET OFF the ice with a fully loaded AK-47? HOW? Have them explain. Then ask, what if this experiment was done in a vacuum chamber? What happens then?

@Oktheorignal 3 года назад

Momentum is not dependent on the "size"... It's dependant on the mass of the object! If the water bottle weighed 5 tons then the truck wouldn't stand a chance!!

@fromnorway643 3 года назад

Momentum depends on both mass and _speed._ That's why a space shuttle main engine (RS-25) produces about 10-15 times more thrust than a typical turbofan engine ejecting the same amount of gas per second (~500 kg/sec).

@felreymiguel5734 3 года назад

Hello :)

@samsmith3313 Год назад

Dude this is elementary for my brain Can you make a more in depth video

@Illuminati_HD 4 года назад

Good Video, but for a Rocket channel wayyyyyy too basic. I am not a physiks guy and even i knew literraly everything. You should explain these things either in more detail or not . cause what you told in the video is completly self explanatory.

@MartianWolf 4 года назад

I’m glad you thought it was a good video! My goal with this was to keep it very simple, so that when I explain other rocket engines in the future, I don’t need to give as much background.