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

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So gravitational waves are a thing. Can there be a gravitational laser?

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If laws of physics are time-reversible, what would happen if we reverse time until the Big Bang, and then some?

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Conservation of charge is neat, but it doesn't, strictly speaking, state that the total charge that is conserved has to be any specific number. What is the entire Universe's total charge?

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In mathematical logic, can we consider isomorphic entities to be the same entity? (explanation inside)

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Is the wave-particle duality meaningful outside its historical context of knowing about particles first and coming to waves later? Right now it seems that all the experiments are consistent with things just being unambiguously waves.

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Had it ever happened, that a theorem was proved, accepted, and used in practical applications, only to later be discovered false due to an error in the proof that nobody noticed?

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Is the Halting Problem algorithmically solvable, if we only care about TMs with less than N states, for some aribtrary but fixed N? (memory tape is still allowed to be infinite)

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Why do some rodents care to spend nutrients to build many babies, if they're gonna eat most of them anyway?

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ELI5 Intuitionistic logic. If not True is False, and not False is True, but not not a is not nessesarily a, then what else can it possibly be?

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What are the predicted\potential applications of quantum computers for consumers?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
So gravitational waves are a thing. Can there be a gravitational laser?	1
If laws of physics are time-reversible, what would happen if we reverse time until the Big Bang, and then some?	1
Conservation of charge is neat, but it doesn't, strictly speaking, state that the total charge that is conserved has to be any specific number. What is the entire Universe's total charge?	1
In mathematical logic, can we consider isomorphic entities to be the same entity? (explanation inside)	1
Is the wave-particle duality meaningful outside its historical context of knowing about particles first and coming to waves later? Right now it seems that all the experiments are consistent with things just being unambiguously waves.	1
Had it ever happened, that a theorem was proved, accepted, and used in practical applications, only to later be discovered false due to an error in the proof that nobody noticed?	1
Is the Halting Problem algorithmically solvable, if we only care about TMs with less than N states, for some aribtrary but fixed N? (memory tape is still allowed to be infinite)	1
Why do some rodents care to spend nutrients to build many babies, if they're gonna eat most of them anyway?	1
ELI5 Intuitionistic logic. If not True is False, and not False is True, but not not a is not nessesarily a, then what else can it possibly be?	1
What are the predicted\potential applications of quantum computers for consumers?	1