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

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Why does caffeine withdrawal cause headaches?

22 upvotes

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Hubble deep field question on age of galaxies in the image

5 upvotes

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Why does atoms smashing together simulate black holes?

2 upvotes

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Why do some species of tortoise and some species of whale like the bowhead Live to be so much older than humans? Is there anything about their biology that we could learn that could possibly be adapted to lengthen human life?

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A few questions about black holes if you don't mind...

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How is it that our ears can hear in so many directions? It makes sense that we can hear left and right since we have two ears, but how is it that we can distinguish up down forward backward, etc? Is it because of the acoustics of our outer ear?

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Is there a radio frequency you can emit at the earth to crack it in half?

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Does marine life feel "cold" like we do?

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Can we train ourselves to sleep with our eyes open?

1 upvotes

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Is there a way to train yourself to sleep with your eyes open? If so, would it be healthy?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Why does caffeine withdrawal cause headaches?	22
Hubble deep field question on age of galaxies in the image	5
Why does atoms smashing together simulate black holes?	2
Why do some species of tortoise and some species of whale like the bowhead Live to be so much older than humans? Is there anything about their biology that we could learn that could possibly be adapted to lengthen human life?	2
A few questions about black holes if you don't mind...	2
How is it that our ears can hear in so many directions? It makes sense that we can hear left and right since we have two ears, but how is it that we can distinguish up down forward backward, etc? Is it because of the acoustics of our outer ear?	2
Is there a radio frequency you can emit at the earth to crack it in half?	2
Does marine life feel "cold" like we do?	2
Can we train ourselves to sleep with our eyes open?	1
Is there a way to train yourself to sleep with your eyes open? If so, would it be healthy?	1