3 ms·
Air from the atmosphere may be the propellant [1]. If sufficient velocity can be achieved before leaving the atmosphere, then no propellant is needed to be carr
by king07828 7y ago
Air from the atmosphere may be the propellant [1]. If sufficient velocity can be achieved before leaving the atmosphere, then no propellant is needed to be carried up on the way to orbit.
[1] https://www.youtube.com/watch?v=XhUasBcoj-Q https://www.youtube.com/watch?v=XhUasBcoj-Q