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

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If black holes occupy an infinitely small point in space, how can they have "size"?

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Childbirth often causes women injury down there. Would regular "stretching" (use your imagination) leading up to the birth help prevent injury and trauma, and if so is this ever recommended?

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I've always wondered what the world would look like if we could see in a frequency other than visible light / UV / infrared (such as microwaves). Do any visual representation of this exist?

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If a species migrated from tropical climates to arctic climates and were separated for many generations, we would see significant divergence between those groups on almost every level, and that is in fact what we always see. Why then do we ignore the differences in geographically separate humans?

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What is the minimum number of plants I would need in a sealed room (with light) to never run out of oxygen?

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As people get into old age, why do they so often seem increasingly unresponsive to interesting conversation?

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Why does marijuana enhance the experience of listening to music?

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How much would it cost to build a car that only required servicing every 1,000,000 miles?

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Is there a theoretical upper limit for the energy density of chemical batteries?

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Is there any genetic evidence of our Homosapien ancestors all having something we would now call a "condition" or a "syndrome" that has since disappeared from the population due to selection pressures?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
If black holes occupy an infinitely small point in space, how can they have "size"?	1
Childbirth often causes women injury down there. Would regular "stretching" (use your imagination) leading up to the birth help prevent injury and trauma, and if so is this ever recommended?	1
I've always wondered what the world would look like if we could see in a frequency other than visible light / UV / infrared (such as microwaves). Do any visual representation of this exist?	1
If a species migrated from tropical climates to arctic climates and were separated for many generations, we would see significant divergence between those groups on almost every level, and that is in fact what we always see. Why then do we ignore the differences in geographically separate humans?	1
What is the minimum number of plants I would need in a sealed room (with light) to never run out of oxygen?	1
As people get into old age, why do they so often seem increasingly unresponsive to interesting conversation?	1
Why does marijuana enhance the experience of listening to music?	1
How much would it cost to build a car that only required servicing every 1,000,000 miles?	1
Is there a theoretical upper limit for the energy density of chemical batteries?	1
Is there any genetic evidence of our Homosapien ancestors all having something we would now call a "condition" or a "syndrome" that has since disappeared from the population due to selection pressures?	1