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

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Why doesn't a light bulb placed inside (but not part of) a circuit like Veritasium suggests not turn on when the electric field starts to propagate?

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How many hydrogen atoms could be crammed into the observable universe?

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What makes putting a man on Mars more difficult than a man on the moon?

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Does pain delay wound healing?

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What evolutionary advantage is there to seals / sea lions having such precise head control that they are able to balance a ball on their noses?

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I know the speed of sound varies based on the medium through which it's travelling, but what is the fastest it can possibly travel, and in what medium?

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Imagine I have a cylinder with 50ml of water, then an airtight plunger leaving no space for air between water and plunger, then withdraw the plunger another 50cc. Assuming the cylinder and plunger are strong enough to resist any deformation, what will happen to the water?

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Are there any known genetic mutations that results in an improvement (e.g. improved cognitive ability, strength, etc)?

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Many many atoms thick is a piece of normal printer paper?

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How do you compare the number of points on the surfaces of two different sized spheres?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Why doesn't a light bulb placed inside (but not part of) a circuit like Veritasium suggests not turn on when the electric field starts to propagate?	1
How many hydrogen atoms could be crammed into the observable universe?	1
What makes putting a man on Mars more difficult than a man on the moon?	1
Does pain delay wound healing?	1
What evolutionary advantage is there to seals / sea lions having such precise head control that they are able to balance a ball on their noses?	1
I know the speed of sound varies based on the medium through which it's travelling, but what is the fastest it can possibly travel, and in what medium?	1
Imagine I have a cylinder with 50ml of water, then an airtight plunger leaving no space for air between water and plunger, then withdraw the plunger another 50cc. Assuming the cylinder and plunger are strong enough to resist any deformation, what will happen to the water?	1
Are there any known genetic mutations that results in an improvement (e.g. improved cognitive ability, strength, etc)?	1
Many many atoms thick is a piece of normal printer paper?	0
How do you compare the number of points on the surfaces of two different sized spheres?	0