/r/askscience

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Why did the Fukushima nuclear plant switch to using fresh water after the accident?

3804 upvotes • scrubs2009

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[deleted by user]

3804 upvotes • [deleted]

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Is it now consensus that high levels of myopia in some populations (eg Taiwan, Hong Kong) is due to insufficient exposure to sunlight? Or is that a fringe theory?

3804 upvotes • MonkeyVsPigsy

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Did relativity HAVE to be discovered mathematically? Could we have discovered the exact equations empirically? Say from observing the difference in clocks on the ground vs on satellites

3799 upvotes • tangentZero

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What might be different if the earths rotation was in the other direction?

3799 upvotes • Rapscallian666

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Is long-Covid specific to Covid infection only, or can you get something similar from a regular cold?

3799 upvotes • kryptonxenon345

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Is it difficult to determine the password for an encryption if you are given both the encrypted and unencrypted message?

3798 upvotes • XiAxis

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Since radio waves and light are both forms of electromagnetic radiation, is it possible to detect visible light with an antenna?

3797 upvotes • Andoryuuta

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Are things like peanut butter, cream cheese, jellies etc. considered a liquid or a solid?

3797 upvotes • shortamations

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Can there be an orbit around a black hole in which the apoapsis is above the photon sphere, but the periapsis is below the event horizon?

3795 upvotes • Weltaum

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
Why did the Fukushima nuclear plant switch to using fresh water after the accident?	3804	scrubs2009
[deleted by user]	3804	[deleted]
Is it now consensus that high levels of myopia in some populations (eg Taiwan, Hong Kong) is due to insufficient exposure to sunlight? Or is that a fringe theory?	3804	MonkeyVsPigsy
Did relativity HAVE to be discovered mathematically? Could we have discovered the exact equations empirically? Say from observing the difference in clocks on the ground vs on satellites	3799	tangentZero
What might be different if the earths rotation was in the other direction?	3799	Rapscallian666
Is long-Covid specific to Covid infection only, or can you get something similar from a regular cold?	3799	kryptonxenon345
Is it difficult to determine the password for an encryption if you are given both the encrypted and unencrypted message?	3798	XiAxis
Since radio waves and light are both forms of electromagnetic radiation, is it possible to detect visible light with an antenna?	3797	Andoryuuta
Are things like peanut butter, cream cheese, jellies etc. considered a liquid or a solid?	3797	shortamations
Can there be an orbit around a black hole in which the apoapsis is above the photon sphere, but the periapsis is below the event horizon?	3795	Weltaum