Is spent nuclear fuel more dangerous to handle than fresh nuclear fuel rods? if so why? | AskScience Blog

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Sunday, December 15, 2019

Is spent nuclear fuel more dangerous to handle than fresh nuclear fuel rods? if so why?

Is spent nuclear fuel more dangerous to handle than fresh nuclear fuel rods? if so why?


Is spent nuclear fuel more dangerous to handle than fresh nuclear fuel rods? if so why?

Posted: 15 Dec 2019 01:59 AM PST

i read a post saying you can hold nuclear fuel in your hand without getting a lethal dose of radiation but spent nuclear fuel rods are more dangerous

submitted by /u/hardnachopuppy
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What exactly causes vision loss in astronauts aboard the ISS?

Posted: 15 Dec 2019 03:20 AM PST

Interviews with Chris Hadfield describe what it is like going blind in space, and I've been fascinated by why space causes vision loss in astronauts. The inability to shed tears in space (requiring them to be wiped away) has always made me wonder what effect that might have on the anterior part of the eye.

A little digging around about vision loss in space showed theories that it could be down to increased levels of cerebrospinal fluid causing intracranial pressure. I thought it might be something to do with blood pressure, though the measurements of astronauts' blood pressure when returning from the ISS varied greatly; some astronauts had low blood pressure but high levels of CSF.

Some astronauts with vision loss were observed to have choroidal folding, this I know very little about as I'm a first year optometry student.

If anyone could shed some light on this I would be grateful. Thank you for your time.

submitted by /u/DNAmber
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How much heat does the earth lose to space?

Posted: 14 Dec 2019 10:24 PM PST

I hear a lot about global warming and it got me thinking that the earth must naturally lose a lot of heat out into space over any given period, so how much are we losing?

submitted by /u/tjmaxal
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If we have short-sightedness when we are young, and develop long-sightedness when we grow old, is there a point when we have perfect eyesight, or is it possible to suffer from both short-sightedness and long-sightedness?

Posted: 15 Dec 2019 07:14 AM PST

What would the inside of sun look like to the human eye?

Posted: 14 Dec 2019 12:41 PM PST

So yesterday I saw a documentary about the sun and how photons are created in the core of stars. When they are first created though, they have so much energy that are in the form of gamma and X rays, which aren't visible to the human eye. So if these photons don't become visible light until the outer layer of the sun, does that mean the inside of the sun would be invisible to us?

submitted by /u/S3xseaTurtle
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Is there a theory, that explains why daily/common activities are often described by irregular verbs?

Posted: 15 Dec 2019 05:31 AM PST

I have the feeling like most irregular verbs in most languages are those you use often on a daily basis, like "see" "want" "go", etc. I stumbled upon this because I learned/tried to learn new European languages. My first theory was, that it's because they all developed from the Indo-European language family. But then I looked into the irregular verbs in Japanese. And their only irregular verbs are "to come" and "to do"!

Sooo is there a theory that tries to explain this pattern?

submitted by /u/josebert_
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What are the genes in a plant that are responsible for the control of the chloroplast?

Posted: 15 Dec 2019 04:35 AM PST

Is taking revenge a natural instinct? And do animals also take revenge?

Posted: 15 Dec 2019 04:31 AM PST

Is the act of shrugging socially learned or biologically learned?

Posted: 15 Dec 2019 02:20 AM PST

I believe emotions are universal, as are the displays of them in most cases, but there are cultural differences of expression. Is shrugging a universal display of emotion, or is it culturally learned?

I asked this question in r/NoStupidQuestions and never got an answer.

submitted by /u/relk42
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If photons are electromagnetic radiation/the particles (bosons?) that transmit electromagnetic force, why don't magnetic and electric fields reflect/refract the way visible light does, even in different materials?

Posted: 14 Dec 2019 07:46 PM PST

Also, is there a way to bounce magnetic field lines off of something like ripples in a pool or waves off a board?

submitted by /u/JackSartan
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Are there regions of space with many stars very close together?

Posted: 14 Dec 2019 06:27 PM PST

Specifically I'm wondering if there are areas with hundreds of star systems within a few lights years of each other.

submitted by /u/IntentionalTexan
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Why we don't see solar emission lines when we put sunlight through a prism but a continuous spectrum?

Posted: 14 Dec 2019 07:50 AM PST

When you put prism in the path of the sunlight you get a nice spectrum spread from red to violet (and beyond the visible part). Why do we get that spectrum? Why don't we see emission lines from hydrogen or helium? Where do other wavelengths come from? How do you "take out all those photons to see say He lines (how helium was first discovered)? I think I read somewhere you can sometimes see absorption lines from atmosphere gases, but why not original source bands? How does it work that we can determine composition of other stars or even exoplanets from their light if everything we get is "white"?

Sorry for lots of questions, it just popped in my head.

submitted by /u/Ishana92
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Does the Earth's atmosphere wear away from the suns rays? (and is there a time limit?)

Posted: 14 Dec 2019 06:30 PM PST

Basically, does the Sun wear away at the Earth's atmosphere in the same way the sun UV rays wears away the colors on a poster?

If so, is there a certain time limit of the atmosphere has to be worn out?

Furthermore, do we have a recorded history on the atmosphere's size and strength and able to see it's size/strength at its changes?

Thanks in advance

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Would the Chicxulub impact have caused an earthquake or created earthquake like waves? If so how high would it have registered?

Posted: 14 Dec 2019 04:49 PM PST

If a one strand of a double strand of DNA encodes a specific sequence which is mirrored on the other strand, why aren't two different proteins produced from the same sequence?

Posted: 14 Dec 2019 12:47 PM PST

Why is the speed of heat conduction so different from the speed of sound in a solid material?

Posted: 14 Dec 2019 04:04 PM PST

Both are about atoms/molecules bouncing against each other, so why does a sound wave travel so quickly through a solid while heat propagates so much slower?

submitted by /u/AcerbicMaelin
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How good is the memory of a scorpion?

Posted: 14 Dec 2019 03:41 PM PST

What's past the cosmological horizon?

Posted: 14 Dec 2019 07:34 AM PST

Do we know what's past the cosmological horizon in the un observable areas of the universe?

submitted by /u/Bigbro1996
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How do I tell the activity series is for anions, both polyatomic and not?

Posted: 14 Dec 2019 01:23 PM PST

I have searched for one for hours if anyone has a list or something, that would be great.

submitted by /u/frozen_pebbles
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Why do female Reindeer grow antlers as well as the males? Why don't other Cervidae do this?

Posted: 14 Dec 2019 01:07 PM PST

I am wondering about antler growth in female Reindeer as compared to other Cervidae, where it is mostly just the males who grow and regrow their antlers.
Often antler growth in other female Cervidae (ie. White Tailed Deer) is usually attributed to more testerone or some sort of "abnormality" but it is not percieved as abnormal for the female Reindeer.
Why is it more common for the female Reindeer? What causes their growth?
Thanks folks!

submitted by /u/trolle222
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When salt dissolved in water it is split into sodium and chloride ions; how come these ions than do not react as they normally do, ex/ sodium violently reacting with the water?

Posted: 14 Dec 2019 12:41 PM PST

Is it because their valence shell configurations have changed?

submitted by /u/hoodie_lover
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