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

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If temperature is the average speed of particles, why is there "wind chill" and not "wind warmth"?

10 upvotes

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If someone were sitting dead-center in the Earth-Moon system's L2, would they be able to see any of the Earth? Or would it all be blocked out from their field of view by the moon?

10 upvotes

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If a light pulse is emitted at you from 1 light year away, and you accelerate toward it before it hits you (but after it's emitted), will it still always take exactly 1 year (according to your watch) to hit you?

9 upvotes

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What causes orbital precession? In layman's terms, could someone explain qualitatively how GR predicts it?

9 upvotes

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What would happen if you were in a 3-torus and you tied a rope to itself end-to-end and tried to change its orientation? (detail inside)

8 upvotes

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Would it be possible to make an accurate visualization of the curvature in 2d spacetime (x, t) that would cause an orbit?

8 upvotes

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What is it about the physical process of a pain receptor being triggered that makes it "undesirable" to the brain overall?

8 upvotes

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Can too much cardio be bad for your heart? And how do you know how much is too much?

7 upvotes

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Is there any data showing a correlation between low-protein diets and higher life expectancy?

7 upvotes

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Is there any truth to the idea that it is (in general) harder for people to lose body fat as they get older?

7 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
If temperature is the average speed of particles, why is there "wind chill" and not "wind warmth"?	10
If someone were sitting dead-center in the Earth-Moon system's L2, would they be able to see any of the Earth? Or would it all be blocked out from their field of view by the moon?	10
If a light pulse is emitted at you from 1 light year away, and you accelerate toward it before it hits you (but after it's emitted), will it still always take exactly 1 year (according to your watch) to hit you?	9
What causes orbital precession? In layman's terms, could someone explain qualitatively how GR predicts it?	9
What would happen if you were in a 3-torus and you tied a rope to itself end-to-end and tried to change its orientation? (detail inside)	8
Would it be possible to make an accurate visualization of the curvature in 2d spacetime (x, t) that would cause an orbit?	8
What is it about the physical process of a pain receptor being triggered that makes it "undesirable" to the brain overall?	8
Can too much cardio be bad for your heart? And how do you know how much is too much?	7
Is there any data showing a correlation between low-protein diets and higher life expectancy?	7
Is there any truth to the idea that it is (in general) harder for people to lose body fat as they get older?	7