/sci/ - Science & Math

>>11688876
I'll need to hand it to you, I have never heard of this thesis and you nearly got me. But it's pretty simple: In the rocket engine, where the fire is, you have got a combustion, an explosion. The fuel mixture rapidly expands in every direction, except the direction of the rocket because, well, thats where the wall of the rocket is. So the combustion pushes the rocket away from itself to expand further.