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

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If I shine a white LED light through a prism, would I see a spectrum, or would I see a red line, a green line, and a blue line?

5445 upvotes

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If you knew all of the dimensions, distances lenses and settings etc, would it ever be feasible to refocus a blurred image?

24 upvotes

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If you annihilated all the mass in the universe and used the energy to accelerate a 1 kilogram rock, how close could you get it to the speed of light?

2 upvotes

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What might the dropping of Fat Man on Nagasaki have looked like from space had something like the ISS existed at the time? Would it have even been visible?

1 upvotes

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If there were humans at the time of the K/T extinction event with current technology and infrastructure, how far in advance would we have been able to detect it coming?

1 upvotes

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Why is bad skin so common faces, yet most people have immaculate necks?

1 upvotes

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Given that studies have shown that children develop language much faster if they're talked to more pre-speech, has the same been shown for any animals?

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If trees hadn't started capturing carbon at the end of the Devonian period, would the atmosphere have just kept building up in radioactivity from the carbon-14 being produced by the sun?

1 upvotes

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Could a human, given modern training and enough steroids, ever be as strong an equally weighted ape?

1 upvotes

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Do the people coastal and fishing communities have more colour cones in their eyes for shades of blue? If not, would they, given enough time?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
If I shine a white LED light through a prism, would I see a spectrum, or would I see a red line, a green line, and a blue line?	5445
If you knew all of the dimensions, distances lenses and settings etc, would it ever be feasible to refocus a blurred image?	24
If you annihilated all the mass in the universe and used the energy to accelerate a 1 kilogram rock, how close could you get it to the speed of light?	2
What might the dropping of Fat Man on Nagasaki have looked like from space had something like the ISS existed at the time? Would it have even been visible?	1
If there were humans at the time of the K/T extinction event with current technology and infrastructure, how far in advance would we have been able to detect it coming?	1
Why is bad skin so common faces, yet most people have immaculate necks?	1
Given that studies have shown that children develop language much faster if they're talked to more pre-speech, has the same been shown for any animals?	1
If trees hadn't started capturing carbon at the end of the Devonian period, would the atmosphere have just kept building up in radioactivity from the carbon-14 being produced by the sun?	1
Could a human, given modern training and enough steroids, ever be as strong an equally weighted ape?	1
Do the people coastal and fishing communities have more colour cones in their eyes for shades of blue? If not, would they, given enough time?	1