/u/Chickens-dont-clap's posts in /r/askscience

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Can new photons be created by things like phone screens and flashlights or do they somehow take photons from the rest of the universe. Or, as I suspect, do I have a very flawed understanding of how light, photons, and phone screens work?

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Why do a lot healthy things (e.g. broccoli) taste bad when evolutionarily it would make more sense for them to taste good

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Why do a lot of healthy foods (e.g. broccoli) taste bad when evolutionarily it would make more sense for them to taste good?

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Roughly how many calories, daily, (if any) does the average adult male use up just by making sperm?

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What exactly is going on in my brain when I think in different voices?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Can new photons be created by things like phone screens and flashlights or do they somehow take photons from the rest of the universe. Or, as I suspect, do I have a very flawed understanding of how light, photons, and phone screens work?	507
Why do a lot healthy things (e.g. broccoli) taste bad when evolutionarily it would make more sense for them to taste good	1
Why do a lot of healthy foods (e.g. broccoli) taste bad when evolutionarily it would make more sense for them to taste good?	1
Roughly how many calories, daily, (if any) does the average adult male use up just by making sperm?	1
What exactly is going on in my brain when I think in different voices?	1