How a Rocket works?

The working of rocket and rocket engine are elaborated in a detailed way with help of animation here. The topics covered are liquid propellant rockets, solid propellant rockets, rocket nozzle, rocket staging, rocket guidance & gimbaled thrust,.

[horizonexploration]

Thank you, now I'm going to build the next Falcon 9 in my garage.

[spoony]

"When the main engine is burned off, it's abandoned"

Elon Musk: Hold my Tesla.

[danielzhou]

A point should be noted where there is a huge difference between getting to space and getting to orbit: altitude is easy but velocity is not.

[kek]

I always wanted to be a rocket surgeon

[php]

It's black magic. It's rocket science. Even to this day rockets are still a heroic feat of engineering because so much can go wrong even with the very best craftsmanship and attention to detail. You still can't take a rocket for granted even though safety and quality control have improved.

[spacecadet]

This narrator talks to me like I’m a toddler. Thank you.

[robertbohrer]

"The greater the momentum the rocket loses, the more force, or thrust, on the rocket." @ 0.28 seconds

That's not correct. I think you meant to say mass, not momentum. The rocket is *gaining* momentum as its velocity increases. Its momentum gain is exactly equal in magnitude and opposite in direction to the momentum gained by its exhaust. It is, however, losing *mass* to do so. Combustion provides the energy necessary for the rocket system's overall increase in the magnitude of its momentum.

[champagneeee]

"They are abandoned" *Laughs in SpaceX*

[anakinskymonke]

3:32 _when the main engine is burned off, it is also abandoned_

SpaceX: *Hold my liquid propellant*

[gunslingers]

0:45
That is *clearly* not the combustion chamber. This is the oxidizer dome.
The combustion chamber is below the fuel inlet. It's basically the the subsonic part of the *laval* nozzle.

[liambenn]

Rocket science: plumbing with extremely volatile liquids

[thomaswijgerse]

nice video. got soem remarkts though

0:30 It's not the momentum the rocket loses that defines its thrust, its the momentum *per second* it loses. big distinction. Thrust is calculated by T [N]= Mass flow [kg/s] * velocity [m/s]
2:37 actually solid rocket motors are the most powerful currently available.
3:53 thats a really... interesting... fairing design.

[internetguy]

amazing channel and website for engineering ... please also focus on small and new details not just the main principle ... I hope you reach 1 million subscriber soon

[zazkegirotron]

simply amazing, made me understand the basics totally, in an enjoyable way, in 5 minutes. awesome! keep it up!

[popedpopcorn]

I wish we had this videos few years ago in school it is much nicer and more interesting than the lectures! great job !!

[TheVirtualArena]

Instructions unclear, made a rocket car.

[andrewgibb]

A little more complicated than I initially imagined.

[ercillor]

It's really very simple!
Think of a balloon. If you blow one up and then tie off the "nozzle" it goes nowhere. If you place it on a table in calm air it just sits there. Why, when there is so much pressure inside the balloon, does it not move? You can best answer the question for yourself if you visualize little arrows for the forces operating inside the balloon. For each arrow of force which you imagine you will immediately recognize that there is an equal and opposite force arrow cancelling it out. How do we know this? Because if that were not true there would be at least one force arrow without anything holding it back --- and then the balloon would move under the influence of that unbalanced force arrow inside of it. Since the balloon doesn't move all the force arrows must be balanced and cancel each other.
Now what happens when we open the nozzle? Well now the force arrows which had been pressing against that part of the balloon (where the "nozzzle" was) have nothing to press against and so they simply disappear. But this leaves the -- now unbalanced -- opposite force arrows without anything to oppose them and so they simply push the balloon across the table. This is simply an observation.

In an actual chemical rocket engine we use burning fuels and the expanding gases which result to create the very same force arrows inside a strong container which has a "nozzle" on one end. The engine does just what the balloon did. The only difference s that the rocket engine is usually made of strong materials and so it does not change its shape as the balloon did and it does not move in an unpredictable way as the balloon did.

Now you may well understand why it is that a rocket engine does not require an atmosphere against which to "push" in order to function. The "push" comes from within.

[This is NOT the case with a jet turbine engine ("turbojet, " or simply "jet") which works by inputting air from its front end, compressing that air, and then expelling it with a higher pressure from its rear. Such an engine DOES require a surrounding atmosphere in order to function].

[vx]

Got kicked out of aero engineering uni 2yrs ago but after applying myself I got re admitted. Thanks for the vids

[ДанилПанов-ья]

this is very interesting and useful video. Now I understand how do rockets work..