/u/ButtFlapMan's posts in /r/askscience
Why don't single engine planes roll in the opposite direction the propellor is turning, similar to helicopters with no tail rotor?
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How will energy generated from fusion reactions within Tokamaks be harnessed and converted to electricity?
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Could LEO satellites capture the molecules with which they collide in the upper atmosphere, and burn them to counter the orbital decay?
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Could a satellite stay in orbit indefinitely with a solar sail that opens and closes at the right time?
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