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

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If electrons are not made up of quarks, why do they form neutrons when pushed into protons in a neutron star? Where do the extra down quarks come from?

10 upvotes

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Destructive interference of 2 waves forms a dark fringe which essentially is a region of absence of light. How can 2 light waves, i.e, 2 energy carrying waves, interact with each other and produce a zero energy resultant? Doesn't that violate the Law of conservation of Energy?

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How do diodes work? Specifically p-n junction diodes?

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If the universe is continuously expanding, where is all the additional gravitational potential energy coming from?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
If electrons are not made up of quarks, why do they form neutrons when pushed into protons in a neutron star? Where do the extra down quarks come from?	10
Destructive interference of 2 waves forms a dark fringe which essentially is a region of absence of light. How can 2 light waves, i.e, 2 energy carrying waves, interact with each other and produce a zero energy resultant? Doesn't that violate the Law of conservation of Energy?	1
How do diodes work? Specifically p-n junction diodes?	1
If the universe is continuously expanding, where is all the additional gravitational potential energy coming from?	1