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AskScience AMA Series: We are experts on NASA's efforts to grow crops in space including a harvest just in time for Thanksgiving! Ask us Anything!

4294 upvotes • AskScienceModerator

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How does Vanta Black work when it comes to absorbing light?

4293 upvotes • twelveinchmeatlong

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Is it possible for a deaf person to have tinnitus? If so, how does it work?

4292 upvotes • Rexinator1440

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What causes raised ridges in human fingernails/toenails?

4291 upvotes • afcagroo

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Why is it that the time of useful consciousness above 10,000m altitude is under one minute when we can easily hold our breath for that long without passing out?

4290 upvotes • electric_ionland

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What kind of impact does sleeping position and sleeping posture have on spine health?

4289 upvotes • i_do_maths_not_words

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Before modern medicine, one of the things people thought caused disease was "bad air". We now know that this is somewhat true, given airborne transmission. What measures taken to stop "bad air" were incidentally effective against airborne transmission?

4289 upvotes • dublin2001

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If the electrical conductivity of silver is higher than any other element, why do we use gold instead in most of our electronic circuits?

4288 upvotes • RomeNeverFell

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How do we know that there is a "Pluto-size ball of solid iron that makes up Earth's inner core"?

4286 upvotes • SayNoToFatChicks

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As bananas emit small amounts of gamma radiation, would it be theoretically possible to get radiation sickness/poisoning in a room completely full of them?

4286 upvotes • ShadowHandler

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
AskScience AMA Series: We are experts on NASA's efforts to grow crops in space including a harvest just in time for Thanksgiving! Ask us Anything!	4294	AskScienceModerator
How does Vanta Black work when it comes to absorbing light?	4293	twelveinchmeatlong
Is it possible for a deaf person to have tinnitus? If so, how does it work?	4292	Rexinator1440
What causes raised ridges in human fingernails/toenails?	4291	afcagroo
Why is it that the time of useful consciousness above 10,000m altitude is under one minute when we can easily hold our breath for that long without passing out?	4290	electric_ionland
What kind of impact does sleeping position and sleeping posture have on spine health?	4289	i_do_maths_not_words
Before modern medicine, one of the things people thought caused disease was "bad air". We now know that this is somewhat true, given airborne transmission. What measures taken to stop "bad air" were incidentally effective against airborne transmission?	4289	dublin2001
If the electrical conductivity of silver is higher than any other element, why do we use gold instead in most of our electronic circuits?	4288	RomeNeverFell
How do we know that there is a "Pluto-size ball of solid iron that makes up Earth's inner core"?	4286	SayNoToFatChicks
As bananas emit small amounts of gamma radiation, would it be theoretically possible to get radiation sickness/poisoning in a room completely full of them?	4286	ShadowHandler