/u/Arandmoor's posts in /r/askscience

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Why are planetary orbits elliptical and not circular?

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What prevents us from hooking the output from a fusion reactor to the input on a fission reactor?

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If we set up a large field of panels in-between the earth and the sun could we significantly cool the planet down?

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Solar panels on earth produce a certain amount of electricity per square inch. If you were closer to the sun, would their efficiency increase?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Why are planetary orbits elliptical and not circular?	1
What prevents us from hooking the output from a fusion reactor to the input on a fission reactor?	1
If we set up a large field of panels in-between the earth and the sun could we significantly cool the planet down?	1
Solar panels on earth produce a certain amount of electricity per square inch. If you were closer to the sun, would their efficiency increase?	1