Btw there is more evidence that god is fake and that the whole bible and idea of a great one is a big ol myth than us being in space. I belive in god but still to give a fair argument there is OVERWHELMING evidence that it could be fake. We have OVERWHELMING evidence that we have traveled in space. FUnny

YOU CANT HAVE THE DISSCUSSION OF WE HAVE NOT BEEN IN SPACE. If WE HAVE NEVER BEEN THERE THAN WE KNOW NOTHING. NOW KNOWING NOTHING HOW DO YOU NO ABOUT NO AIR AND ALL THESE MOLECULES. YOU HAVE TO BELEVIE THE FACT THAT WE HAVE BEEN TO SPACE. YOU CONATRICT YOURSELF. EXPLAIN THIS

He wont respond to anytihng anybody post, he knows hes wrong just a little kid who thinks hes funny lol

Alright i do have a question. The thrust that pushes the rocket. Well does that thrust stay in motion. Like the force of the air. It has nothign to slow it down so would it just keep going in the opsite way of the rocket?

Even in a vacuum heated particles will expand just as cooled off particles will contract. During the expansion the particles will expand in the direction of the least resistance. When the point of least resistance is the object itself moving then you get movement.

It does not matter that the rest of the area is a vacuum. At that tiny place where the combustion is taking place it is no longer a vacuum.

Satelites don't apply because they are still in the atmosphere.

I am absolutely stunned that none of you guys understand jet or rocket propulsion, it is junior grade physics.

The basic idea is that you have a chamber with a high pressure inside. Imagine something like a compressed scuba diving tank, or a propane bottle, or maybe even a party balloon. This pressure might be measured in pounds per square inch, or some other suitable unit.

Now in a completely closed sealed container, this internal pressure pushes outwards equally in every direction. There is no external thrust generated (obviously) because the internal pressure pushes outwards the same in every direction.

Now suppose suddenly you cut a hole in one end of this tank.. The internal pressure still pushes in every direction EXCEPT where the hole is. So the internal foces OPPOSITE the hole push the tank in that direction.

If there is 100 psi in the tank, and a one square inch hole, there will be 100 lbs of thrust against the inside of the tank opposite where the hole is. This is 100 lbs of unbalanced forces, and it acts INSIDE the tank. It needs no external air to push against.

A jet engine works exactly the same way. It is the forces innside the engine that push the engine in a forward direction. The gasses coming out the back are just a release of pressure. Jet engines require external air for combustion. Rockets do not.

Getting back to rocket engines. A simple hole will not work very well, because all the gas pressure inside the engine will suddenly just empty out of the hole, leaving no high pressure inside the engine. There would then be nothing to push against the front of the inside of the engine.

What is done is you fit a sonic nozzle to the engine. This is a convergent, divergent cone, the classic rocket nozzle shape. This creates a sonic shock wave inside the narrowest part of the engine to keep a very high pressure buildup inside the engine. This higher internal pressure greatly increases the thrust. The shape of this nozzle is critical to getting optimum thrust. But that thrust comes from the high pressure inside the combustion chamber, not from the exhaust "pushing" against anything.

Hope that helps..




This is all pretty basic stuff. Surprised you guys have never heard it all before.