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

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What's the most massive black hole that could strike the earth without causing any damage?

1426 upvotes

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Why do the fish in my aquarium show as patches of reversed colors when light is refracted through it?

1 upvotes

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Why does the tabletop under this water balloon rise up in the moment that the balloon is popped?

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If a spaceship was in stable orbit around a supermassive black hole outside the event horizon, could it lower someone or something across the horizon and then retrieve it?

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Is it possible that the degree of sickness/symptoms is related to the quantity of virus one is exposed to?

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Is there a good biological/evolutionary theory about why humans have such tremendous variation in the size of secondary sexual characteristics - aka breasts and penis size?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
What's the most massive black hole that could strike the earth without causing any damage?	1426
Why do the fish in my aquarium show as patches of reversed colors when light is refracted through it?	1
Why does the tabletop under this water balloon rise up in the moment that the balloon is popped?	1
If a spaceship was in stable orbit around a supermassive black hole outside the event horizon, could it lower someone or something across the horizon and then retrieve it?	1
Is it possible that the degree of sickness/symptoms is related to the quantity of virus one is exposed to?	1
Is there a good biological/evolutionary theory about why humans have such tremendous variation in the size of secondary sexual characteristics - aka breasts and penis size?	1