/r/askscience

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What happened between the time that a piece of gold was mined and the time that the gold atoms were generated which caused them to be located next to one another?

584 upvotes • moonsteethmarks

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Why is chlorophyll green? Isn't there a more energetically favorable color?

584 upvotes • johnaldmilligan

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If one intentionally ignores the urge to urinate, why do the bladder muscle weaken, but other muscles (eg heart) get stronger when actively engaged?

584 upvotes • parkeddingobrains

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How has Earth's biomass changed over time?

584 upvotes • aggasalk

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When paper dries after being wet, why does it dry wrinkled instead of drying flat?

583 upvotes • Arcane_Explosion

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Is it possible to Melt carbon, and if how? and if not why ?

583 upvotes • VanDayk

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If you could strike one side of an atom is there a propagation delay before the far end of the atom knows to start moving? Do they deform in some way...i.e. as a tennis ball when it is struck?

583 upvotes • SureIllrecordthat

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Why does your throat get sore?

583 upvotes • IcyCaverns

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Since we are constantly generating new skin cells, what causes a scar to form and stay?

582 upvotes • Xamnam

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Challenge: Can ice be made by man without use of electricity in a warm climate?

582 upvotes • Robot_Animal

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
What happened between the time that a piece of gold was mined and the time that the gold atoms were generated which caused them to be located next to one another?	584	moonsteethmarks
Why is chlorophyll green? Isn't there a more energetically favorable color?	584	johnaldmilligan
If one intentionally ignores the urge to urinate, why do the bladder muscle weaken, but other muscles (eg heart) get stronger when actively engaged?	584	parkeddingobrains
How has Earth's biomass changed over time?	584	aggasalk
When paper dries after being wet, why does it dry wrinkled instead of drying flat?	583	Arcane_Explosion
Is it possible to Melt carbon, and if how? and if not why ?	583	VanDayk
If you could strike one side of an atom is there a propagation delay before the far end of the atom knows to start moving? Do they deform in some way...i.e. as a tennis ball when it is struck?	583	SureIllrecordthat
Why does your throat get sore?	583	IcyCaverns
Since we are constantly generating new skin cells, what causes a scar to form and stay?	582	Xamnam
Challenge: Can ice be made by man without use of electricity in a warm climate?	582	Robot_Animal