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(Phys Org2)   Contradictory outcomes in proton asymmetry experiment leads scientists to revisit discarded theories, and... ask if these guys ever clean the lab. Is that dust, blood? Are they growing potatoes on that floor?   (phys.org) divider line
    More: Interesting, Quark, Proton, Particle physics, Neutron, Strong interaction, Electron, Weak interaction, Up quark  
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654 clicks; posted to STEM » on 24 Feb 2021 at 7:22 PM (7 weeks ago)   |   Favorite    |   share:  Share on Twitter share via Email Share on Facebook



14 Comments     (+0 »)
View Voting Results: Smartest and Funniest
 
ZAZ [TotalFark]
2021-02-24 6:20:16 PM  
Nature has a more technical review at https://www.nature.com/articles/d4158​6​-021-00430-3 which doesn't seem to be paywalled (unlike the paper itself).
 
2021-02-24 8:33:20 PM  
What up and down Quarks make look like:

Fark user imageView Full Size

Fark user imageView Full Size
 
2021-02-25 1:50:37 AM  
The grossness in that pic is not due as much to grime as horribly overdone pseudo-HDR effects.
Someone had a low contrast photo because they didn't know how to shoot for low light conditions, and tried to make up for it in post by going into their photo editing software and turning all the sliders up to 11
-
/HDR makes everything look like clown vomit
 
2021-02-25 5:47:41 AM  
Weird question from non-STEMmie:
Are there any models that explain why the electrons don't collapse onto the protons?
Their sheer speed?
 
2021-02-25 6:17:30 AM  

Resident Muslim: Weird question from non-STEMmie:
Are there any models that explain why the electrons don't collapse onto the protons?
Their sheer speed?


Electrons are quantum wave effects -- that is, their "position" isn't so much a case of exactly where they are: the most nature gives us (and the electron itself) is the probability of them being somewhere. The standard model for this is The Standard Model.
 
2021-02-25 7:29:44 AM  

PartTimeBuddha: Resident Muslim: Weird question from non-STEMmie:
Are there any models that explain why the electrons don't collapse onto the protons?
Their sheer speed?

Electrons are quantum wave effects -- that is, their "position" isn't so much a case of exactly where they are: the most nature gives us (and the electron itself) is the probability of them being somewhere. The standard model for this is The Standard Model.


I've read a bit on the "they are somewhere" thing.
I never had any information regarding why that position doesn't collapse.
A light google suggests centrifugal force.
That sounds too convenient to me.
:)
 
2021-02-25 7:31:51 AM  

Resident Muslim: PartTimeBuddha: Resident Muslim: Weird question from non-STEMmie:
Are there any models that explain why the electrons don't collapse onto the protons?
Their sheer speed?

Electrons are quantum wave effects -- that is, their "position" isn't so much a case of exactly where they are: the most nature gives us (and the electron itself) is the probability of them being somewhere. The standard model for this is The Standard Model.

I've read a bit on the "they are somewhere" thing.
I never had any information regarding why that position doesn't collapse.
A light google suggests centrifugal force.
That sounds too convenient to me.
:)


Or as Funnyman (Feynman) calls them "convenient lies".
 
2021-02-25 7:51:52 AM  
Potatoes are an important part of science.
i.redd.itView Full Size
 
2021-02-25 7:56:07 AM  

Tyrone Slothrop: Potatoes are an important part of science.
[i.redd.it image 850x531]


And for emergency power
:)
 
2021-02-25 8:34:54 AM  

Resident Muslim: A light google suggests centrifugal force.


You have to press Enter to obtain search results.

But, if you are interested, try this Youtube playlist: https://www.youtube.com/wat​ch?v=_wxG5K​MAFik&list=PLsPUh22kYmNCGaVGuGfKfJl-6R​dHiCjo1&ab_channel=PBSSpaceTime
 
2021-02-25 11:02:07 AM  

Resident Muslim: Weird question from non-STEMmie:
Are there any models that explain why the electrons don't collapse onto the protons?
Their sheer speed?


That does happen, it is called electron capture. If you're wondering why it doesn't happen in every case, all the time, I'm guessing the answer is to do with the energy involved in that process. Maybe you could make it happen in a one proton one electron system like the hydrogen atom (where you might suppose this would happen, as the contour describing the position of the electron actually includes the nucleus) by supplying the necessary energy. That it doesn't happen in a particular case implies that that system has reached some energetic minimum. Basically, you'll probably never be wrong supposing that "energy"is the reason some thing does or doesn't happen.
 
ZAZ [TotalFark]
2021-02-25 11:27:57 AM  
The electron not collapsing onto the proton was one of the puzzles that inspired early work in quantum mechanics.  Because in classical physics it would, radiating an infinite amount of energy along the way.
 
2021-02-26 1:15:16 AM  

PartTimeBuddha: Resident Muslim: A light google suggests centrifugal force.

You have to press Enter to obtain search results.

But, if you are interested, try this Youtube playlist: https://www.youtube.com/watc​h?v=_wxG5KMAFik&list=PLsPUh22kYmNCGaVG​uGfKfJl-6RdHiCjo1&ab_channel=PBSSpaceT​ime


Thank you.
I've saved the notification to see later.
 
2021-02-26 1:28:24 AM  

ScepticalChymist: Resident Muslim: Weird question from non-STEMmie:
Are there any models that explain why the electrons don't collapse onto the protons?
Their sheer speed?

That does happen, it is called electron capture. If you're wondering why it doesn't happen in every case, all the time, I'm guessing the answer is to do with the energy involved in that process. Maybe you could make it happen in a one proton one electron system like the hydrogen atom (where you might suppose this would happen, as the contour describing the position of the electron actually includes the nucleus) by supplying the necessary energy. That it doesn't happen in a particular case implies that that system has reached some energetic minimum. Basically, you'll probably never be wrong supposing that "energy"is the reason some thing does or doesn't happen.


So what's other than energy? Structure? Something else?
 
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