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

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When an organ, say, a kidney, is donated, what happens to the empty space where it once was?

783 upvotes

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How many stars had to explode to create the heavier elements that make up our solar system? How much of a heavy element is created in a supernova? How many stars had to die to create Earth?

24 upvotes

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The Wikipedia page for a heptagon says that it is not possible to construct with just a compass and a straight edge, but I just found a gif that seems to show how to do it. What am I missing?

11 upvotes

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Is it easier to produce water ice when it is in the presence of existing ice crystal (much like a seed crystal in diamond manufacturing)?

7 upvotes

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If we formed massive, human-scaled objects of antimatter, would they appear differently to our eye? Assuming it's properly separated from normal matter, could we detect that it is 'anti' from a distance?

1 upvotes

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How do we calculate quantities of dark matter vs dark energy?

1 upvotes

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If we can (theoretically) combine two egg cells to create a valid XX fetus, could two sperm be combined and transplanted into a uterus? How long would a YY fetus live through gestation?

1 upvotes

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When I view 3D, are my eyes focusing like normal? If my pupils are smaller will focus be better?

1 upvotes

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If a perfect vacuum is impossible, does that mean that the speed of light is purely theoretical?

1 upvotes

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If we had control over how the human body grew, what would we have to change in order to make wing-powered flight feasible?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
When an organ, say, a kidney, is donated, what happens to the empty space where it once was?	783
How many stars had to explode to create the heavier elements that make up our solar system? How much of a heavy element is created in a supernova? How many stars had to die to create Earth?	24
The Wikipedia page for a heptagon says that it is not possible to construct with just a compass and a straight edge, but I just found a gif that seems to show how to do it. What am I missing?	11
Is it easier to produce water ice when it is in the presence of existing ice crystal (much like a seed crystal in diamond manufacturing)?	7
If we formed massive, human-scaled objects of antimatter, would they appear differently to our eye? Assuming it's properly separated from normal matter, could we detect that it is 'anti' from a distance?	1
How do we calculate quantities of dark matter vs dark energy?	1
If we can (theoretically) combine two egg cells to create a valid XX fetus, could two sperm be combined and transplanted into a uterus? How long would a YY fetus live through gestation?	1
When I view 3D, are my eyes focusing like normal? If my pupils are smaller will focus be better?	1
If a perfect vacuum is impossible, does that mean that the speed of light is purely theoretical?	1
If we had control over how the human body grew, what would we have to change in order to make wing-powered flight feasible?	1