/u/[deleted]'s posts in /r/askscience

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If there's a bulb that only shoots 1 photon a second, would you see it blip every second?

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Why is peripheral blood used in blood test opposed to blood from the arteries?

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When someone donates an organ,e.g. a lung, what goes in the empty space? NSFW

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In movies it seems like the most natural thing to knock out a person for some time and without side effects. Assuming one has the skills and "tool", would the outcome be predictable IRL at all?

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Why does the energy density remain the same in an expanding universe?

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If the DNA is the same in every cell, how does the body know to build an arm here, run a blood vessel there, put a femur in the thigh, and put 4 chambers in the heart? NSFW

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Is the physiological effect of an orgasm the same whether it's self induced (from masturbation) or achieved with the help of a partner?

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Is a Hydrogen/atomic Bomb the absolute limit of explosive force?

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Why don't we quantify chemical imbalances in the brain for diagnostic purposes?

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Why is it that so many animals can swim instinctively, but swimming is a learned ability in humans?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
If there's a bulb that only shoots 1 photon a second, would you see it blip every second?	18
Why is peripheral blood used in blood test opposed to blood from the arteries?	18
When someone donates an organ,e.g. a lung, what goes in the empty space? NSFW	18
In movies it seems like the most natural thing to knock out a person for some time and without side effects. Assuming one has the skills and "tool", would the outcome be predictable IRL at all?	18
Why does the energy density remain the same in an expanding universe?	18
If the DNA is the same in every cell, how does the body know to build an arm here, run a blood vessel there, put a femur in the thigh, and put 4 chambers in the heart? NSFW	18
Is the physiological effect of an orgasm the same whether it's self induced (from masturbation) or achieved with the help of a partner?	18
Is a Hydrogen/atomic Bomb the absolute limit of explosive force?	18
Why don't we quantify chemical imbalances in the brain for diagnostic purposes?	18
Why is it that so many animals can swim instinctively, but swimming is a learned ability in humans?	18