Re:LightSail 2 Spacecraft Successfully Demonstrates Flight b...
by packet_nerd on Wednesday July 31, 2019 @08:46PM
(#20580211)
> It works by pushing against the surrounding medium.
Not really. If a fan was able to blow air in a vacuum it would produce thrust as well. Basically a rocket does that. It's just blowing gasses out the back.
It's Newton's law of motion, "every action has an equal and opposite reaction".
Not really. If a fan was able to blow air in a vacuum it would produce thrust as well. Basically a rocket does that. It's just blowing gasses out the back.
It's Newton's law of motion, "every action has an equal and opposite reaction".