/r/askscience

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Do x-rays have depth of field like regular cameras do? How do things look in an out of focus X-ray shot?

2188 upvotes • chonchonchon12

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The Gauche Effect. I don't understand how, on the subject of Newman Projections, that the gauche conformation of 2-fluoroethanol, for instance, can be more stable than the anti?

2188 upvotes • Jake336612

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How exactly do flashbangs produce light?

2188 upvotes • Angelstone2056

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The aluminum we interact with on a daily basis is coated in a fine layer of aluminum oxide. Is there any difference between this layer and sapphire?

2187 upvotes • 7UPvote

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When someone has been knocked unconscious, what wakes them back up? In other words, what is the signal/condition that tells someone to regain consciousness?

2187 upvotes • atx2pdx

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If a nuclear payload was inbound via ICBM, would a ground observer be able to see it coming before the explosion?

2185 upvotes • ReasonablyConfused

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In string theory, if strings are 1-dimensional, how do they vibrate in more than 1 dimension? E.g. If a piece of paper (defined by dimensions ,y) was truly 2 dimensional, could you bend it along the z-axis?

2183 upvotes • robbiedenali

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Let's say there's a daily lottery. Person A buys 365 tickets for one drawing on one day. Person B buys one ticket each day for a year. Do they have different chances of winning?

2180 upvotes • spoolingthreads

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My eyes can focus on an object that is roughly as small as 1/20,000th my body length. Can a small insect's eyes do the same? Could an insect see bacteria?

2179 upvotes • [deleted]

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Since mealworms eat styrofoam, can they realistically be used in recycling?

2179 upvotes • Jctiews

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
Do x-rays have depth of field like regular cameras do? How do things look in an out of focus X-ray shot?	2188	chonchonchon12
The Gauche Effect. I don't understand how, on the subject of Newman Projections, that the gauche conformation of 2-fluoroethanol, for instance, can be more stable than the anti?	2188	Jake336612
How exactly do flashbangs produce light?	2188	Angelstone2056
The aluminum we interact with on a daily basis is coated in a fine layer of aluminum oxide. Is there any difference between this layer and sapphire?	2187	7UPvote
When someone has been knocked unconscious, what wakes them back up? In other words, what is the signal/condition that tells someone to regain consciousness?	2187	atx2pdx
If a nuclear payload was inbound via ICBM, would a ground observer be able to see it coming before the explosion?	2185	ReasonablyConfused
In string theory, if strings are 1-dimensional, how do they vibrate in more than 1 dimension? E.g. If a piece of paper (defined by dimensions ,y) was truly 2 dimensional, could you bend it along the z-axis?	2183	robbiedenali
Let's say there's a daily lottery. Person A buys 365 tickets for one drawing on one day. Person B buys one ticket each day for a year. Do they have different chances of winning?	2180	spoolingthreads
My eyes can focus on an object that is roughly as small as 1/20,000th my body length. Can a small insect's eyes do the same? Could an insect see bacteria?	2179	[deleted]
Since mealworms eat styrofoam, can they realistically be used in recycling?	2179	Jctiews