/u/Karmaa's posts

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If photons travel at the speed of light, that means the time lapse from the photons perspective is either absent absent or infinitely small. So does that mean, when I turn on a flashlight and point it at a wall, the photons were both created and at the wall at the same time?

4 upvotes • 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 • r/askscience

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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 • r/askscience

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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 • r/askscience

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

1 upvotes • r/askscience

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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 • r/askscience

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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 • r/askscience

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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 • r/askscience

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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 • r/askscience

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

1 upvotes • r/askscience

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Title	Upvotes	Subreddit	Mark as read	Favorited	Rating	Add to a list
If photons travel at the speed of light, that means the time lapse from the photons perspective is either absent absent or infinitely small. So does that mean, when I turn on a flashlight and point it at a wall, the photons were both created and at the wall at the same time?	4	askscience
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	askscience
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	askscience
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	askscience
Does the rotation of a black hole play are role in its merger with another black hole?	1	askscience
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	askscience
If a photon has no mass, then wouldn't according to E=mc^2, mean it has no energy either?	1	askscience
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	askscience
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	askscience
Can somebody provide details on how the Coronavirus is killing people?	1	askscience