/r/askscience
Can a moon have a moon? What limits the "levels" of satellite that can exist in a stable solar system?
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If experts can tell me I shouldn't leave my phone connected to the charger after it's charged, and my phone can detect and tell me when it's charged, why can't the phone just go ahead and turn off the charging when it's charged?
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If you dropped an ant off the Empire State Building (or some other very high building) would it survive?
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I spent three days taking care of my boyfriend with the flu and now he's feeling much better. Now I'm sick. He's suggesting that I blow him to try and absorb his antibodies. How full of shit is he?
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If a twin donated an organ to his/her sibling, would the sibling have to take immunosuppressant drugs?
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