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

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How accurately can we measure gravity, and do the formula we use to make the calculations take into account the effects of space/time expansion on its accuracy?

4 upvotes

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Is there anything at all that can happen in a planck time, other than the speed of light traveling a distance of one planck?

1 upvotes

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I was microwaving water in a glass cup, and for some reason, it would not boil, so I kept extending the timer, then all the sudden, the water literally exploded out of the cup! What did I just witness?

1 upvotes

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Does the rotation of a black hole play are role in its merger with another black hole?

1 upvotes

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Is it possible to heat up an object that is spherical in shape, over the summer, and then have it radiate the heat for ~5 months months, if so, what material would it need to be made of and how large would it have to be?

1 upvotes

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If a photon has no mass, then wouldn't according to E=mc^2, mean it has no energy either?

1 upvotes

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Do solar systems that orbit massive blackholes, remain intact? Or do they get scrambled up and lose planets, and eventually end up just being composed of a star?

1 upvotes

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If the space between the event horizon and the center of a blackhole is infinite, then how can the gravity ever propagate past the event horizon, since dark energy would be expanding the space in question, infinity faster than C?

1 upvotes

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Can somebody provide details on how the Coronavirus is killing people?

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Could quantum entanglement be used to study Black Holes? For example by sending one of the two particles into the black hole?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
How accurately can we measure gravity, and do the formula we use to make the calculations take into account the effects of space/time expansion on its accuracy?	4
Is there anything at all that can happen in a planck time, other than the speed of light traveling a distance of one planck?	1
I was microwaving water in a glass cup, and for some reason, it would not boil, so I kept extending the timer, then all the sudden, the water literally exploded out of the cup! What did I just witness?	1
Does the rotation of a black hole play are role in its merger with another black hole?	1
Is it possible to heat up an object that is spherical in shape, over the summer, and then have it radiate the heat for ~5 months months, if so, what material would it need to be made of and how large would it have to be?	1
If a photon has no mass, then wouldn't according to E=mc^2, mean it has no energy either?	1
Do solar systems that orbit massive blackholes, remain intact? Or do they get scrambled up and lose planets, and eventually end up just being composed of a star?	1
If the space between the event horizon and the center of a blackhole is infinite, then how can the gravity ever propagate past the event horizon, since dark energy would be expanding the space in question, infinity faster than C?	1
Can somebody provide details on how the Coronavirus is killing people?	1
Could quantum entanglement be used to study Black Holes? For example by sending one of the two particles into the black hole?	1