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

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Disregarding big leaks, what is the main mechanisms for tires to lose pressure over time? Is it the valve? Or does air permeate through the rubber?

5749 upvotes

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Looking at how stereo is implemented in vinyl records, it would seem very hard to get two entirely independent channels. Is that one of the things that makes the "vinyl sound"?

323 upvotes

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If Rayleigh scattering is responsible for the sky being blue, why is the atmosphere as seen from space still blue?

41 upvotes

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When you contract an unknown disease like the new Chinese coronavirus where means of transmission and virulence is unknown, how do doctors care for you? Do you become a Bubble Boy?

32 upvotes

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For birds that fly in a classic V formation, are there birds that always fly on the left arm and others that only fly on the right arm?

8 upvotes

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Energy + Time appear coupled together in both the uncertainty principle, and in Noether's Theorem. Is there a connection between the two theorems?

2 upvotes

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When starting to play a 33rpm 12" vinyl record, the needle travels at about one meter per minute across the vinyl. By the end of the playback that drops to about half the speed; does this not affect the possible sound quality? Does the beginning of a record sound better than the end?

1 upvotes

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By the time of your death (let's presume an 80-year life span), what's the percentage of atoms remaining in your body that were present at your birth?

1 upvotes

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Have humans evolved to eat hot food?

1 upvotes

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How does wind "carry" a tune?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Disregarding big leaks, what is the main mechanisms for tires to lose pressure over time? Is it the valve? Or does air permeate through the rubber?	5749
Looking at how stereo is implemented in vinyl records, it would seem very hard to get two entirely independent channels. Is that one of the things that makes the "vinyl sound"?	323
If Rayleigh scattering is responsible for the sky being blue, why is the atmosphere as seen from space still blue?	41
When you contract an unknown disease like the new Chinese coronavirus where means of transmission and virulence is unknown, how do doctors care for you? Do you become a Bubble Boy?	32
For birds that fly in a classic V formation, are there birds that always fly on the left arm and others that only fly on the right arm?	8
Energy + Time appear coupled together in both the uncertainty principle, and in Noether's Theorem. Is there a connection between the two theorems?	2
When starting to play a 33rpm 12" vinyl record, the needle travels at about one meter per minute across the vinyl. By the end of the playback that drops to about half the speed; does this not affect the possible sound quality? Does the beginning of a record sound better than the end?	1
By the time of your death (let's presume an 80-year life span), what's the percentage of atoms remaining in your body that were present at your birth?	1
Have humans evolved to eat hot food?	1
How does wind "carry" a tune?	1