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

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Do the effects of caffeine and alcohol differ with one's body weight?

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Animals of the same species look pretty much the same to us. Is there more variation in visible characteristics in humans or is this purely due to us being better at recognising other humans?

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Can we use a massive rail gun to shoot objects into space instead of using rockets?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Do the effects of caffeine and alcohol differ with one's body weight?	1
Animals of the same species look pretty much the same to us. Is there more variation in visible characteristics in humans or is this purely due to us being better at recognising other humans?	1
Can we use a massive rail gun to shoot objects into space instead of using rockets?	1