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(BBC)   In the latest result to show like everything else after 2016 that physics is broken, physicists observe 'negative mass'   ( bbc.co.uk) divider line
    More: Cool, Classical mechanics, negative mass, Physics, Newton's laws of motion, Atom, Fundamental physics concepts, General relativity, rubidium atoms  
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1801 clicks; posted to Geek » on 19 Apr 2017 at 4:33 PM (26 weeks ago)   |   Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



33 Comments     (+0 »)
 
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2017-04-19 02:34:55 PM  
Negative EFFECTIVE mass.  There's a difference in QM.

Hell, with that math you can make an electron heavy.
 
2017-04-19 02:39:14 PM  
a Bose-Einstein condensate

Weird shiat happens when you're that cold.
 
2017-04-19 03:48:49 PM  
So if negative mass winds up being a thing, are we one step closer to having anti-gravity devices?
 
2017-04-19 04:00:02 PM  

aRegularJoe_aRegularJob: So if negative mass winds up being a thing, are we one step closer to having anti-gravity devices?


No.  With negative mass, you'll still feel weight, only it'll be constantly cynical, defeatist, and hopeless.
 
2017-04-19 04:28:18 PM  

aRegularJoe_aRegularJob: So if negative mass winds up being a thing, are we one step closer to having anti-gravity devices?


Not with this technology.  It's back to the EM drive, which I STILL don't buy.
 
2017-04-19 04:35:33 PM  
Negative mass? So like mirror universe Rosie O'Donnell?
 
2017-04-19 04:37:31 PM  

SumFrequency: Negative EFFECTIVE mass.  There's a difference in QM.

Hell, with that math you can make an electron heavy.


SHUT YOUR FACE, NERD!
 
2017-04-19 04:39:27 PM  

Marcus Aurelius: aRegularJoe_aRegularJob: So if negative mass winds up being a thing, are we one step closer to having anti-gravity devices?

Not with this technology.  It's back to the EM drive, which I STILL don't buy.


Too poor, eh?
 
2017-04-19 04:39:48 PM  
Would someone smarter than me tell me if this would work as the negstive mass that could power an Alcuberre drive?
 
2017-04-19 04:47:56 PM  

spcMike: SumFrequency: Negative EFFECTIVE mass.  There's a difference in QM.

Hell, with that math you can make an electron heavy.

SHUT YOUR FACE, NERD!


Don't you have a shirt to wear?
 
2017-04-19 04:50:16 PM  

Tr0mBoNe: a Bose-Einstein condensate

Weird shiat happens when you're that cold.


I see you've met my ex.
 
2017-04-19 04:50:49 PM  

toraque: aRegularJoe_aRegularJob: So if negative mass winds up being a thing, are we one step closer to having anti-gravity devices?

No.  With negative mass, you'll still feel weight, only it'll be constantly cynical, defeatist, and hopeless.


As have you.
 
2017-04-19 04:51:27 PM  
Negative mass waves.  I can see that, I think. With more mass at times, averaging out.
 
2017-04-19 04:54:21 PM  
"Negative Mass" is a really critical homily at a Catholic church.
 
2017-04-19 04:54:40 PM  

Sim Tree: Would someone smarter than me tell me if this would work as the negstive mass that could power an Alcuberre drive?


It would not. You'd need some exotic material with negative inertial mass and all sorts of wonky properties that can only exist in bizarre varieties of non-Standard Model physics.

I mean, it's a cool experiment with neat results, but it's negative mass in the sense that there have been experiments demonstrating temperatures "below" absolute zero.
 
2017-04-19 04:55:09 PM  
FTFA: "In the everyday world, when an object is pushed, it accelerates in the same direction as the force applied to it; this relationship is described by Isaac Newton's Second Law of Motion."

When you fall to Earth, it's as if you're being pushed away from Earth, due to compression of spacetime. Your mass resists that simulated push by pushing against the force. Since there's nothing to push against, you move toward the Earth.

When you push anything, it pushes back. This relationship is described by Isaac Newton's Third Law of Motion.

Pop science is dumb science.
 
2017-04-19 05:04:44 PM  
Looks like they found quantum mash pot
 
2017-04-19 05:07:57 PM  

palelizard: toraque: aRegularJoe_aRegularJob: So if negative mass winds up being a thing, are we one step closer to having anti-gravity devices?

No.  With negative mass, you'll still feel weight, only it'll be constantly cynical, defeatist, and hopeless.

As have you.


img.fark.net
 
2017-04-19 05:20:46 PM  

Marcus Aurelius: aRegularJoe_aRegularJob: So if negative mass winds up being a thing, are we one step closer to having anti-gravity devices?

Not with this technology.  It's back to the EM drive, which I STILL don't buy.


I might never understand it, but I consider the philosophy of entropy to be a thing. I figure everything gives off some forms of energy just by existing, and as long as you funnel it in space, it has to have some propulsion, no matter how small.
 
2017-04-19 05:32:24 PM  

SumFrequency: Negative EFFECTIVE mass.  There's a difference in QM.

Hell, with that math you can make an electron heavy.


I've always thought electrons were heavy man.... it's the positrons that were always cool.
 
2017-04-19 05:33:00 PM  

Tr0mBoNe: a Bose-Einstein condensate

Weird shiat happens when you're that cold.


imagine how hard the nipples would be... I mean damn.
 
2017-04-19 05:35:48 PM  

his name is my name too: SumFrequency: Negative EFFECTIVE mass.  There's a difference in QM.

Hell, with that math you can make an electron heavy.

I've always thought electrons were heavy man.... it's the positrons that were always cool.


I've always wondered what it would take to turn an atomic particle neutral.
 
2017-04-19 05:50:57 PM  

OkieDookie: I've always wondered what it would take to turn an atomic particle neutral.


Dude, if we ever pulled that off, I'd totally call it a....

wait for it....

neutron
 
2017-04-19 05:54:01 PM  
Aww. I thought it might be talking about real negative mass that gravitationally repels positive mass things through the equation img.fark.net

There have been speculations that anti-matter has negative mass and mostly exists regions of the universe separated by this repulsion. Of course this conflicts with all sorts of established theories. See: https://en.wikipedia.org/wiki/Negative_mass

Only recently have people tried to measure the mass of anti-matter but I don't think the issue is settled. Here is one result:
http://alpha.web.cern.ch/node/248
Today, the ALPHA Collaboration has published results in Nature Communications placing the first experimental limits on the ratio of the graviational and inertial masses of antihydrogen (the ratio is very close to one for hydrogen). We observed the times and positions at which 434 trapped antihydrogen atoms escaped our magnetic trap, and searched for the influence of a gravitational force. Based on our data, we can exclude the possibility that the gravitiational mass of antihydrogen is more than 110 times its inertial mass, or that it falls upwards with a gravitational mass more than 65 times its inertial mass.
 
2017-04-19 06:03:10 PM  

toraque: palelizard: toraque: aRegularJoe_aRegularJob: So if negative mass winds up being a thing, are we one step closer to having anti-gravity devices?

No.  With negative mass, you'll still feel weight, only it'll be constantly cynical, defeatist, and hopeless.

As have you.

[img.fark.net image 400x250]


I meant "you've also met my ex". It was a follow up to the post above it.
 
2017-04-19 07:34:40 PM  
I could design an experiment that might measure the mass of a hydrogen atom at -0.2±1.8 normal hydrogen masses.
 
2017-04-19 07:58:14 PM  
What happens when they open a portal to a whole negative mass universe that starts to intrude on our own? Did they think about that? I bet they didn't. But you're thinking about it now, aren't you? Sleep well.
 
2017-04-19 08:48:55 PM  

his name is my name too: SumFrequency: Negative EFFECTIVE mass.  There's a difference in QM.

Hell, with that math you can make an electron heavy.

I've always thought electrons were heavy man.... it's the positrons that were always cool.


img.fark.net
 
2017-04-19 11:05:10 PM  

SumFrequency: Negative EFFECTIVE mass.  There's a difference in QM.

Hell, with that math you can make an electron heavy.


Why not. They broke math when trump won with 2.87 million fewer votes than hillary. Why not break physics too.
 
2017-04-19 11:15:46 PM  

OkieDookie: Negative mass? So like mirror universe Rosie O'Donnell?


No, it's where atheists go on Sundays.
 
2017-04-19 11:27:49 PM  

smrtone: What happens when they open a portal to a whole negative mass universe that starts to intrude on our own? Did they think about that? I bet they didn't. But you're thinking about it now, aren't you? Sleep well.


I've read my anime;   All we'd need is to find the true princess of Under Tokyo and reforge the Staff of Demons.
 
2017-04-20 08:22:19 AM  

2wolves: smrtone: What happens when they open a portal to a whole negative mass universe that starts to intrude on our own? Did they think about that? I bet they didn't. But you're thinking about it now, aren't you? Sleep well.

I've read my anime;   All we'd need is to find the true princess of Under Tokyo and reforge the Staff of Demons.


Can we take our time a little bit and at least *try* to enjoy the tentacles?
 
2017-04-20 10:18:49 AM  

Evil Twin Skippy: 2wolves: smrtone: What happens when they open a portal to a whole negative mass universe that starts to intrude on our own? Did they think about that? I bet they didn't. But you're thinking about it now, aren't you? Sleep well.

I've read my anime;   All we'd need is to find the true princess of Under Tokyo and reforge the Staff of Demons.

Can we take our time a little bit and at least *try* to enjoy the tentacles?


We'd have to ask Ghastly.
 
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