Originally Posted by MVPlaya
Now, here is one additional argument that I failed to bring up the first time around, and this is the one that puts the nail in the coffin for Billy's theory (which means Billy's coffin is privy to two nails).
Billy correctly (for once) points out to you that for every action, there is an equal and opposite reaction. So lets imagine we're in a vacuum, if you throw an object in the opposite direction, just as much force as you applied to that object will be applied to you. In effect, if you’re at Point A and you throw the ball to the left, not only will the ball move to the left of Point A, but you will move to the right of it. This is the underlying theory of space travel:
When a rocket combusts fuel, it places matter (gas) into space. By pushing the matter one end, it pushes itself to the other end. Rocket engines throw mass in the form of high-pressure gases. As the engine throws the gas out in one direction it gets a reaction in the opposite direction. The mass is the weight of the fuel that the engine burns. This burning process then accelerates the mass of fuel so that it comes out of the rocket nozzle at high speeds. So if you burn a pound of rocket fuel, a pound of exhaust comes out the nozzle in the form of a high-temperature, high-velocity gas. The burning process accelerates the mass and, in doing so, accelerates the spacecraft.
Therefore, combusting fuel creates force in one direction that pushes you in the other direction. And that is what you need for space travel.
Note, by the way, that the fact that fuel turns from a solid or liquid into gas when it burns does not change its mass; the mass stays constant, its shape simply changes.
In the end, its pretty simple, Billy gave us some under-researched arguments based on his personal conjectures, but when we compared them to some hard-researched science, his theories failed to stand the test. Now that you've read this far three things are evident to you: first of all, it is possible to travel in space; second of all, man did land on the moon, there is no reason remaining for us to dispute that claim; and, finally, you can be a pimp and still know your physics.
Booya!