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

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If a photon continuously bounce between two solar panels would it continue to generate electricity?

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If photons are mass less than how come a black hole can capture it with gravity?

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Is there a limitation to evolution? e.g. can a colony of bacteria evolve to live of 100% Ethanol or live on Saturn?

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How long can a virus to survive and still infectious without a host?

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Now that the two COVID-19 vaccines has been approved, are they required to go through the same procedure if an additional mRNA were added, say for the strain?

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Does a vaccine have to go through another FDA approval and clinical trial if an additional mRNA were to be added to combat a new strain?

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Historically is there a reason why why Windows path is backward slash "\" vs unix/linux which is forward "/"

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Historically is there a reason why why Windows path is backward slash "\" vs unix/linux which is forward "/"?

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If there is no central point of big bang, then how is it the more distance a galaxy is, the faster it is traveling away from us ( close to speed of light or even more)? I guess I'm confused, because if its everywhere then whey is there even a speed difference since there are no references?

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Do we know the skin/eye/hair color of neanderthals?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
If a photon continuously bounce between two solar panels would it continue to generate electricity?	1
If photons are mass less than how come a black hole can capture it with gravity?	1
Is there a limitation to evolution? e.g. can a colony of bacteria evolve to live of 100% Ethanol or live on Saturn?	1
How long can a virus to survive and still infectious without a host?	1
Now that the two COVID-19 vaccines has been approved, are they required to go through the same procedure if an additional mRNA were added, say for the strain?	1
Does a vaccine have to go through another FDA approval and clinical trial if an additional mRNA were to be added to combat a new strain?	1
Historically is there a reason why why Windows path is backward slash "\" vs unix/linux which is forward "/"	1
Historically is there a reason why why Windows path is backward slash "\" vs unix/linux which is forward "/"?	1
If there is no central point of big bang, then how is it the more distance a galaxy is, the faster it is traveling away from us ( close to speed of light or even more)? I guess I'm confused, because if its everywhere then whey is there even a speed difference since there are no references?	1
Do we know the skin/eye/hair color of neanderthals?	1