How a Rocket Works/Earth to Space Eg SpaceX Falcon 9 and Dragon

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1. great !!!
2. sounds like more bs
3. Not accurate! To go to the moon, as Apollo did, you do not need enough force to leave the pull of the Earth. You just need to be in an orbit around the Earth that brings the spacecraft close enough to the moon to enter its orbit, as did Apollo. See, if the main engine of any of the Apollo CSMs, which were blasted to the moon at thousands of miles per hour, had failed to fire, they would not have been stuck in space with no way back to Earth. In Apollo 13, the spacecraft was hurling towards the moon, but it could not fire its rocket to bring it back, but since it was in an elliptical orbit around the Earth that eventually brought them back to the Earth, they survived.
4. Excellent explanation. Came here after Elon's Interview where he explained forward speed and gravitational pull. Thank you!
5. osm
6. but...earth is flat...
7. Ok you said that to go to the moon, a faster than orbit launch is needed, but an article i read about apollo mission, mentioned some braking orbit action, this is what I'm trying to understand, how was this push possible, how was control even made possible when moonlanding, if there is no steering, how can they talk about braking moon's orbit? And how was velocity manipulation achieved to land(if the moon is land) the craft? There is no air, so that means no fan, nor jet should work, right?
8. Thanks that made a lot of sense and was easy to understand. I always wondered how it worked.
9. The precision required to send humans to the Moon is just staggering, just think about it, a couple of miles per hour off and you're just going to miss it. And the bravery involved, oh... What a great achievement for humanity!
10. where do the detached parts fall....
11. should rockets work in a vacuum? space sucks, so, what's to say the fuel won't just flow our with no movement? as the fuel is just being sucked out.
12. +RimstarOrg Thanks for the explanation. What is the solid fuel used by spacex or nasa?
13. i háve a question, how do electic devices work, because i have two motors, if i spin them one generates 17 volts and the other 80, but the one that generates 90 cant run a circuit of lightbulbs while the other with 17 volts can, isnt the bigger the voltage the bigger the current??
14. 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].
15. why a fighter plane cant go to the moon?
16. This did NOT explain how rockets work.
17. Actually I missed to type rocket in place of earth... anyways tysm
18. What is the escape velocity of earth while leaving earth
19. wot. you put a spring in your apparatus, wtf m8
20. the rockets, why they used flammable fuel, tons of fuel chamber, tons of fuel, rocket debris falling, flying guide structure for take of. waste of money. when flight the force hit the ground and when up the force hits the air, force wasted. My AIR ROCKETS natures way no need to carry air because its all over the place no fuel chamber. and the load is defy. the rocket carry its own weight leveling the height tilt. when up level becomes + the Antigravity will response to make it zero. the load is responding to the movement of rockets. up down, horizontal travel north,south,west, east. top rockets horizontal and vertical , bottom rockets vertical leveling heights. my rockets is Inside force. reverse rocket the force hits the chassis of the load. from top to bottom. it is not flammable. used 4 elements to fly. 09462568300.