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

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On the surface of the Earth, organic life ultimately evolved using the Sun's light as an energy source. Is it scientifically feasible that deep below the surface of the Earth, a completely separate evolutionary chain of life could have evolved from geothermal energy?

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Claim that groin kicks can "break the pelvis and render an attacker physically unable to pursue" - fact, or martial arts class hyperbole?

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What effect, if any, would microwaves have on uranium glassware?

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Say that I'm typing a word and I make a single letter typo. If I painstakingly go back and fix the typo only, is that in any way (electrons, computer memory, etc.) more "economical" than just Ctrl+Backspace and retyping the word?

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If a man has a vasectomy, can his semen still be traced via DNA? Is there other cellular material in semen independent of sperm that contains the producer's DNA?

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Are there other, more elegant, physical phenomena from which to calculate a universal unit of distance?

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Could there be an organism so efficient that it excretes waste unuseable by any other?

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Is there a term to describe a child's learning confusion when confronted by assumed cultural references or milestones that they do not understand? (Example in comments.)

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Is there any optical constant phenomenon whereby one's distance from something is correlated to its apparent size?

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Portal 2 got me thinking: what would happen if you "magically linked" the Earth's atmosphere to the surface of the Moon?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
On the surface of the Earth, organic life ultimately evolved using the Sun's light as an energy source. Is it scientifically feasible that deep below the surface of the Earth, a completely separate evolutionary chain of life could have evolved from geothermal energy?	1
Claim that groin kicks can "break the pelvis and render an attacker physically unable to pursue" - fact, or martial arts class hyperbole?	1
What effect, if any, would microwaves have on uranium glassware?	1
Say that I'm typing a word and I make a single letter typo. If I painstakingly go back and fix the typo only, is that in any way (electrons, computer memory, etc.) more "economical" than just Ctrl+Backspace and retyping the word?	1
If a man has a vasectomy, can his semen still be traced via DNA? Is there other cellular material in semen independent of sperm that contains the producer's DNA?	1
Are there other, more elegant, physical phenomena from which to calculate a universal unit of distance?	1
Could there be an organism so efficient that it excretes waste unuseable by any other?	1
Is there a term to describe a child's learning confusion when confronted by assumed cultural references or milestones that they do not understand? (Example in comments.)	1
Is there any optical constant phenomenon whereby one's distance from something is correlated to its apparent size?	1
Portal 2 got me thinking: what would happen if you "magically linked" the Earth's atmosphere to the surface of the Moon?	0