/r/askscience

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Only show posts with narrations

There's no sound in a vacuum because sounds are vibrations in the air, and in a vacuum there is no air to vibrate. So where does the energy that would go into vibrating the air particles go instead?

5366 upvotes • MrZipZap

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Is the physiological process of falling asleep due to boredom the same as falling asleep due to tiredness?

5366 upvotes • puffybunion

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Why is the brain divided?

5365 upvotes • envatted_love

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In 1899 "Mile-a-Minute" Charles Murphy set a bicycle world record of 60 mph by riding behind a train to reduce drag, would this approach work for human runners as well to break the elusive 30 mph threshold?

5358 upvotes • onajag

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Do black holes swallow dark matter?

5358 upvotes • LegioCI

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Is it possible to recreate a smell from a basic list of smells? in other words, is there an RGB equivalent for smells?

5356 upvotes • NouveauMonde

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How much of a person's height is determined by DNA and how much is determined thru health and diet while an adolescent?

5356 upvotes • Reciproc1ty

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Do we innately conceal our genitals?

5354 upvotes • [deleted]

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Windows 10 says pins are safer than passwords how can this be when passwords have more combinations?

5352 upvotes • thelonelyward3

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Does reducing the swelling on a injury (like putting ice on a sprain) has any healing benefits or is just to reduce the "look" and "feel" of a swollen injury?

5349 upvotes • mrrobc97

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
There's no sound in a vacuum because sounds are vibrations in the air, and in a vacuum there is no air to vibrate. So where does the energy that would go into vibrating the air particles go instead?	5366	MrZipZap
Is the physiological process of falling asleep due to boredom the same as falling asleep due to tiredness?	5366	puffybunion
Why is the brain divided?	5365	envatted_love
In 1899 "Mile-a-Minute" Charles Murphy set a bicycle world record of 60 mph by riding behind a train to reduce drag, would this approach work for human runners as well to break the elusive 30 mph threshold?	5358	onajag
Do black holes swallow dark matter?	5358	LegioCI
Is it possible to recreate a smell from a basic list of smells? in other words, is there an RGB equivalent for smells?	5356	NouveauMonde
How much of a person's height is determined by DNA and how much is determined thru health and diet while an adolescent?	5356	Reciproc1ty
Do we innately conceal our genitals?	5354	[deleted]
Windows 10 says pins are safer than passwords how can this be when passwords have more combinations?	5352	thelonelyward3
Does reducing the swelling on a injury (like putting ice on a sprain) has any healing benefits or is just to reduce the "look" and "feel" of a swollen injury?	5349	mrrobc97