- #1
homerwho
- 42
- 17
- TL;DR Summary
- Propulsion from thrusters is pushing against something.
I feel ok that in our atmosphere there is pressure that is a force to push against. But in a "vacuum" there is very little element available to push off of. I had some experience with near space high vacuum here on earth. The machinery was able to get down to analysis of element composition of elements in a hi vac chamber. I am recalling that at 10 ^ -15 torr it was close to space pressure. But with classical physics what is there to push against at that void?