/u/RyanW1019's posts in /r/askscience

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Do quarks and other elementary particles have mass? Does the concept of mass still make sense/apply at that scale? Is there a Planck mass, similar to a Planck length, that is the smallest mass something can be?

31 upvotes

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Does your body adapt in any way to repeatedly donating blood? Things like increased blood regeneration, etc.

9 upvotes

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Would a compass work in a Faraday cage?

5 upvotes

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If you have two limbs of nonequal strength, and you exercise both equally, will they eventually equalize in terms of capability?

2 upvotes

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How did certain facial expressions become associated with certain emotions?

2 upvotes

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What types of charging/discharging cycles are good/bad for cell phone batteries?

1 upvotes

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I understand that light is diffracted by water, glass, etc. because light travels slower through those materials. The part I don't understand is, why does changing the speed of light change its direction?

1 upvotes

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If we were somehow able to give Mars an Earth-like atmosphere, at what rate would gas escape into space? Would we be able to maintain it on a human timescale?

1 upvotes

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How long could you survive in space without any protective gear if you held your breath? Long enough to get back inside the ship? What about if you were in a (depressurized) spacesuit?

1 upvotes

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If a nuclear bomb was about to go off near your location, could you survive the blast by diving into a pool or body of water and swimming straight down?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Do quarks and other elementary particles have mass? Does the concept of mass still make sense/apply at that scale? Is there a Planck mass, similar to a Planck length, that is the smallest mass something can be?	31
Does your body adapt in any way to repeatedly donating blood? Things like increased blood regeneration, etc.	9
Would a compass work in a Faraday cage?	5
If you have two limbs of nonequal strength, and you exercise both equally, will they eventually equalize in terms of capability?	2
How did certain facial expressions become associated with certain emotions?	2
What types of charging/discharging cycles are good/bad for cell phone batteries?	1
I understand that light is diffracted by water, glass, etc. because light travels slower through those materials. The part I don't understand is, why does changing the speed of light change its direction?	1
If we were somehow able to give Mars an Earth-like atmosphere, at what rate would gas escape into space? Would we be able to maintain it on a human timescale?	1
How long could you survive in space without any protective gear if you held your breath? Long enough to get back inside the ship? What about if you were in a (depressurized) spacesuit?	1
If a nuclear bomb was about to go off near your location, could you survive the blast by diving into a pool or body of water and swimming straight down?	1