/u/drkflame67's posts in /r/askscience

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If I were to put a fish in a bowl of water then put that bowl in a vacuum, would the fish notice any changes?

749 upvotes

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How do we measure how far objects are away in space, as in hundreds of light years away?

18 upvotes

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Since light has no mass and mass is needed for energy (E=mc^2) how do we get energy from light, such as lasers and solar power?

3 upvotes

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I am laying down head first traveling at light speed. Would my circulatory system be able to pump the blood out of my feet back toward my heart?

1 upvotes

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If I brought a compass to the International Space Station where would it point?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
If I were to put a fish in a bowl of water then put that bowl in a vacuum, would the fish notice any changes?	749
How do we measure how far objects are away in space, as in hundreds of light years away?	18
Since light has no mass and mass is needed for energy (E=mc^2) how do we get energy from light, such as lasers and solar power?	3
I am laying down head first traveling at light speed. Would my circulatory system be able to pump the blood out of my feet back toward my heart?	1
If I brought a compass to the International Space Station where would it point?	1