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

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How does a down quark turn into an up quark in neutron decay?

8 upvotes

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If I drop something warm into a black hole, the black hole becomes colder. How does this not violate the laws of thermodynamics?

8 upvotes

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As flu viruses mutate, do they ever accidentally reprise an earlier version? As in, could a version appear for which older people already had antibodies, but the younger generation did not?

7 upvotes

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How are dying low-mass stars able to produce such heavy elements?

7 upvotes

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Suppose I have a balloon filled with Deuterium. How often should I expect quantum tunneling or lucky collisions to merge two of the nuclei into a helium nucleus?

6 upvotes

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Are Lagrange points still the same under other inverse power force laws besides an inverse square law?

5 upvotes

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Does an individual proton have multiple energy levels?

5 upvotes

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As a star orbiting a black hole emits gravity waves, does its orbit become more or less elliptical?

5 upvotes

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How do painkillers like ibuprofen and paracetemol work to kill pain, but not hinder other sensation or neural functions?

5 upvotes

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"Entropy tends to increase" - but is this still true on the scale of the universe?

2 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
How does a down quark turn into an up quark in neutron decay?	8
If I drop something warm into a black hole, the black hole becomes colder. How does this not violate the laws of thermodynamics?	8
As flu viruses mutate, do they ever accidentally reprise an earlier version? As in, could a version appear for which older people already had antibodies, but the younger generation did not?	7
How are dying low-mass stars able to produce such heavy elements?	7
Suppose I have a balloon filled with Deuterium. How often should I expect quantum tunneling or lucky collisions to merge two of the nuclei into a helium nucleus?	6
Are Lagrange points still the same under other inverse power force laws besides an inverse square law?	5
Does an individual proton have multiple energy levels?	5
As a star orbiting a black hole emits gravity waves, does its orbit become more or less elliptical?	5
How do painkillers like ibuprofen and paracetemol work to kill pain, but not hinder other sensation or neural functions?	5
"Entropy tends to increase" - but is this still true on the scale of the universe?	2