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

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From what I understand, we have a lot of trouble surgically reconnecting nerves. That being the case, how do transplants work? If we can't really reconnect nerves, how does the transplanted tissue function?

306 upvotes

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What actually causes a sore throat? Why do throats become inflamed/infected/etc. as opposed to, say, the roof of the mouth, or under the tongue?

34 upvotes

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What is the chemical mechanism behind the effect of alcohol? Why does it transcend the blood-brain barrier/how do its psychological effects come about?

7 upvotes

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Why do melting glaciers always appear dirty? Is it long-term carbon buildup, short-term buildup, or something else entirely?

4 upvotes

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How do we know what 4D objects look like when projected in three dimensions?

1 upvotes

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How is the initial direction of a newly-produced photon determined?

1 upvotes

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If the universe was once extremely dense, why did all matter not immediately collapse into a black hole with the mass of the universe?

1 upvotes

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What is actually happening when two electric or magnetic fields interact with each other?

1 upvotes

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What is actually happening when two electric or magnetic fields interact with each other?

1 upvotes

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When something gains velocity from a complete standstill (or changes direction along a single axis), does it accelerate infinite acceleration at the moment of the change?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
From what I understand, we have a lot of trouble surgically reconnecting nerves. That being the case, how do transplants work? If we can't really reconnect nerves, how does the transplanted tissue function?	306
What actually causes a sore throat? Why do throats become inflamed/infected/etc. as opposed to, say, the roof of the mouth, or under the tongue?	34
What is the chemical mechanism behind the effect of alcohol? Why does it transcend the blood-brain barrier/how do its psychological effects come about?	7
Why do melting glaciers always appear dirty? Is it long-term carbon buildup, short-term buildup, or something else entirely?	4
How do we know what 4D objects look like when projected in three dimensions?	1
How is the initial direction of a newly-produced photon determined?	1
If the universe was once extremely dense, why did all matter not immediately collapse into a black hole with the mass of the universe?	1
What is actually happening when two electric or magnetic fields interact with each other?	1
What is actually happening when two electric or magnetic fields interact with each other?	1
When something gains velocity from a complete standstill (or changes direction along a single axis), does it accelerate infinite acceleration at the moment of the change?	1