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(Wired)   Physicists attempt to create "time crystals," which repeat at regular intervals without using energy   (wired.com) divider line 29
    More: Cool, time crystal, space-time, old quantum theory, kinetic energy, physicists, ground states, quantum gravity, excited states  
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1659 clicks; posted to Geek » on 30 Apr 2013 at 1:58 PM (1 year ago)   |  Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



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2013-04-30 12:28:21 PM  
Yeah, but repeat what?
 
2013-04-30 01:59:36 PM  
Yeah, but repeat what?
 
2013-04-30 02:02:35 PM  

cretinbob: Yeah, but repeat what?


This

Jounville: Yeah, but repeat what?


This
 
2013-04-30 02:06:13 PM  
I think I read about these in, Matt Lauer Can Suck It.
 
2013-04-30 02:07:25 PM  
www.timecube.com

Does that prove or disprove the time cube?
 
2013-04-30 02:09:17 PM  
FTAThe Berkeley-led team will attempt to build a time crystal by injecting 100 calcium ions into a small chamber surrounded by electrodes. The electric field generated by the electrodes will corral the ions in a "trap" 100 microns wide, or roughly the width of a human hair. The scientists must precisely calibrate the electrodes to smooth out the field. Because like charges repel, the ions will space themselves evenly around the outer edge of the trap, forming a crystalline ring.

Huh. That kinda sounds more like a force field to me.
 
2013-04-30 02:10:06 PM  
I posted this yestermorrow

wibbly-wibbly timey-wimey ... thing
 
2013-04-30 02:10:25 PM  
www.thelunchmovie.com

Don't forget to insert the crystals
 
2013-04-30 02:11:31 PM  

cretinbob: Yeah, but repeat what?


This
 
2013-04-30 02:18:10 PM  
Great... now I need to go google what time symmetry means, then figure out how a rotating ring of ions can "break" that.... which probably means I should look into that whole crystal vs space symmetry  thing for a more concrete examples.... welp, there goes the afternoon.
 
2013-04-30 02:25:18 PM  
Yeah, but repeat what?
 
2013-04-30 02:25:25 PM  
Hey, who turned out the lights?
 
2013-04-30 02:28:32 PM  

SpdrJay: Yeah, but repeat what?


.sihT
 
2013-04-30 02:37:11 PM  
Yay! Perpetual motion devices, now at the atomic level!
 
2013-04-30 02:45:54 PM  
So how long until additional pylons?
 
2013-04-30 02:46:12 PM  

FormlessOne: Yay! Perpetual motion devices, now at the atomic level!


This is what I was wondering.  The way "time crystal" is defined sounds an awful lot like a perpetual motion machine to me.
 
2013-04-30 02:46:39 PM  

Summoner101: So how long until additional pylons?


It could take a while, so probably by yesterday.
 
2013-04-30 02:49:04 PM  
 
2013-04-30 02:53:08 PM  

Donnchadha: [www.timecube.com image 528x359]

Does that prove or disprove the time cube?


Whoa! Dude!
 
2013-04-30 02:54:22 PM  

Gosling: Hey, who turned out the lights?


I'm fine....I'm, I'm fine
 
2013-04-30 03:35:27 PM  
Finally, something to power a time machine with
 
2013-04-30 03:48:56 PM  
it may take "anywhere between three and infinity years" to complete

That's pretty specific.
 
2013-04-30 03:56:19 PM  
So, let me get this straight:  Normal crystals break spatial symmetry because the atoms which make them up can only exist in certain points in space at any given time.  With these time crystals, they break temporal symmetry because the atoms can only exist in certain points in space at certain specific times, thus forcing them to move as the spot that they were in is no longer a viable location to exist at in the overall system.
 
2013-04-30 04:50:55 PM  

LrdPhoenix: So, let me get this straight:  Normal crystals break spatial symmetry because the atoms which make them up can only exist in certain points in space at any given time.  With these time crystals, they break temporal symmetry because the atoms can only exist in certain points in space at certain specific times, thus forcing them to move as the spot that they were in is no longer a viable location to exist at in the overall system.


That's the idea. While the experiment is starting at the atomic level, though, it may be that the effect can only be realized at certain scales. I'm thinking Planck length, to be honest. Or we could just find a quirky source of particle teleportation. Why do the atoms/particles/etc have to traverse the empty space?
 
2013-04-30 04:57:54 PM  
28.media.tumblr.com
 
2013-04-30 06:31:35 PM  

tarnok: FormlessOne: Yay! Perpetual motion devices, now at the atomic level!

This is what I was wondering.  The way "time crystal" is defined sounds an awful lot like a perpetual motion machine to me.


It sort of is, but it can't do any work, so you're all good.
 
2013-04-30 07:13:09 PM  
Weird. There are 27 comments in each of the two threads. Coincidence?
 
2013-04-30 11:18:56 PM  
And the train wreck of modern physics continues...
 
FNG [TotalFark]
2013-05-01 12:40:47 AM  
We need a time lord and an 80s video character to sort this one out.
 
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