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(Phys Org2)   The coolest thing you'll read all day but never be able to understand: a space-time crystal. Don't ask subby, he's still trying to understand Memento   (phys.org ) divider line
    More: Interesting, space-time, ground states, carbon nanotubes, buckyballs, Engineering Center, crystallisation, electrical charges, crystals  
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4294 clicks; posted to Geek » on 24 Sep 2012 at 10:13 PM (4 years ago)   |   Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



46 Comments     (+0 »)
 
View Voting Results: Smartest and Funniest
 
2012-09-24 09:25:49 PM  
Build the crystal so I can have my essence
www.onlyforever.com
 
2012-09-24 10:02:47 PM  
I've already got the drawing...

www.timecube.com
 
2012-09-24 10:17:00 PM  
No-one tell subby about circular polarization.
 
2012-09-24 10:18:23 PM  
imageshack.us

Well duh, why do you think they keep inviting him back to the Oscars after his terrible "jokes" ever year?
 
2012-09-24 10:29:20 PM  
images1.wikia.nocookie.net
 
2012-09-24 10:30:43 PM  

Demetrius: I've already got the drawing...

[www.timecube.com image 528x359]


I'm disappointed that is the SECOND post in the thread.
 
2012-09-24 10:34:23 PM  

Demetrius: I've already got the drawing...

source


here
 
2012-09-24 10:36:06 PM  
Somebody just plugged their powerstrip into itself.

http://www.geekologie.com/2012/03/plug-a-powerstrip-into-itself-for-f r ee-e.php
 
2012-09-24 10:38:52 PM  
Looks a little wibbly-wobbly to me.
 
2012-09-24 10:39:01 PM  
stuffpoint.com

Not available for comment.
 
2012-09-24 10:41:37 PM  
This is the "wow" factor behind a device known as a "space-time crystal," a four-dimensional crystal that has periodic structure in time as well as space.

So it's sort of a PSARDIS?
 
2012-09-24 10:43:31 PM  
Subby, try reading TFA backwards.
 
2012-09-24 10:44:59 PM  
Faces of space-time crystal

files.dailycontributor.com
 
2012-09-24 10:52:23 PM  
"Imagine a clock that will keep perfect time forever, even after the heat-death of the universe. This is the "wow" factor behind a device known as a "space-time crystal," a four-dimensional crystal that has periodic structure in time as well as space."

Its called dilithium people...
 
2012-09-24 11:00:09 PM  

NIXON YOU DOLT!!!!!: Demetrius: I've already got the drawing...

[www.timecube.com image 528x359]

I'm disappointed that is the SECOND post in the thread.


This.
 
2012-09-24 11:03:47 PM  
It's called bath salts.
 
2012-09-24 11:04:16 PM  
da fuq?
I tried, I tried so hard to read that. .


\go bears..
\\you assholes..
 
2012-09-24 11:23:10 PM  
That article gave me a headache
 
2012-09-25 12:05:09 AM  
I'm sorry subby. I don't remember the article. I have this condition. I don't know if I have told you about it.
 
2012-09-25 12:09:23 AM  
Can I use it to ice my grill?
 
2012-09-25 12:37:15 AM  
they need to build this thing in 4 dimensions? I thought time was the fourth dimension. Length, Width, Height & Time. I've heard of postulations of other dimensions, but...

Ah fark it.

jackiechanheadasplode.jpg
 
2012-09-25 12:41:53 AM  
Leonard did not kill his wife. Teddy only told him that as one more mindfark.
 
2012-09-25 12:42:41 AM  

somemoron: they need to build this thing in 4 dimensions? I thought time was the fourth dimension. Length, Width, Height & Time. I've heard of postulations of other dimensions, but...

Ah fark it.

jackiechanheadasplode.jpg


Yeah... Time is the 4th dimension. Did you RTFA?

/subby
//Can you asplain it to me?
 
2012-09-25 12:42:55 AM  

somemoron: they need to build this thing in 4 dimensions? I thought time was the fourth dimension. Length, Width, Height & Time. I've heard of postulations of other dimensions, but...

Ah fark it.

jackiechanheadasplode.jpg


I've read that in a gas, the individual atoms will, at some point, occupy every possible space at some time. It's just that it's MOST LIKELY that they will spread themselves out evenly and behave like what we observe in a gas.

I've read that time is a bit like that. That it is a physical thing, with it's own properties, but what we observe is simply the most likely thing to observe.

So building a 4D structure isn't all that weird.
 
2012-09-25 12:45:59 AM  
I thought they debunked the whole space-time crystal thing in Napoleon Dynamite.
 
2012-09-25 12:48:01 AM  

Stile4aly: Leonard did not kill his wife. Teddy only told him that as one more mindfark.


Was Sammy Jenkis really suffering from anterograde amnesia?
 
2012-09-25 12:51:57 AM  

AssAsInAssassin: Stile4aly: Leonard did not kill his wife. Teddy only told him that as one more mindfark.

Was Sammy Jenkis really suffering from anterograde amnesia?


I think Sammy really was suffering and did indeed kill his wife. I don't think that Leonard would have projected his life onto Sammy's story, because if he had killed his wife he wouldn't be able to remember it and thus wouldn't need an invented memory to cope with the trauma.
 
2012-09-25 12:59:18 AM  

Stile4aly: AssAsInAssassin: Stile4aly: Leonard did not kill his wife. Teddy only told him that as one more mindfark.

Was Sammy Jenkis really suffering from anterograde amnesia?

I think Sammy really was suffering and did indeed kill his wife. I don't think that Leonard would have projected his life onto Sammy's story, because if he had killed his wife he wouldn't be able to remember it and thus wouldn't need an invented memory to cope with the trauma.


So how do the crystal's ions exhibit periodicity in spacetime?
 
2012-09-25 01:42:31 AM  
cdn.physorg.com
What's not to understand?
 
2012-09-25 02:42:19 AM  
So... a crystal is a structure that repeats itself in all three dimensions... so trapping ions in a rotations state would mean it's a repeating patterns not only in three dimensions but also the forth dimension: time. Thus a space time crystal. Except... that's if time is linear... if time isn't linear then you can't make a space time crystal because once you make one that pattern would only exist going forward through time. A true space time crystal would have always existed and... always will. My head hurts.
 
2012-09-25 03:00:50 AM  

wildsnowllama: So... a crystal is a structure that repeats itself in all three dimensions... so trapping ions in a rotations state would mean it's a repeating patterns not only in three dimensions but also the forth dimension: time. Thus a space time crystal. Except... that's if time is linear... if time isn't linear then you can't make a space time crystal because once you make one that pattern would only exist going forward through time. A true space time crystal would have always existed and... always will. My head hurts.


Time is linear/Memory's a stranger/History is for fools/Man is a tool in the hands of the great God Almighty

/Roger Waters
 
2012-09-25 05:21:17 AM  

AssAsInAssassin: /subby
//Can you asplain it to me?


"4D crystal" in this case isn't referring to constructing an object with an extra spacial dimension. It's taking the definition of "crystallization" from a quantum perspective, and applying it to this object's behavior in time. As in, "because the particles' structure is periodic in time as well as space, they behave as a crystal in 4 dimensions." A salt crystal, for example, is periodic in three dimensions but in time, the particles exhibit random vibration. In theory, the particles in this clock would not.

Because the particles are at ground state (lowest possible excitation), and their motion is determined by quantum effects when subjected to a weak magnetic field, the "crystal" will theoretically always oscillate at the same rate and never collapse assuming that the ion trap (the thing holding the particles close to each other) is continuously powered.

wildsnowllama: Except... that's if time is linear... if time isn't linear then you can't make a space time crystal because once you make one that pattern would only exist going forward through time.


Nah, it can have a beginning and end and still be crystalline. It exists periodically in both time directions from any point other than a terminus. Just not necessarily forever.
 
2012-09-25 06:18:26 AM  
 
2012-09-25 06:25:22 AM  
wait, if they have a rotating 2D ring going through time doesn`t that make it 3D with 1 of the D being time?
 
2012-09-25 09:30:24 AM  
quick, someone tell these guys - Link


Link - their clock
 
2012-09-25 09:45:24 AM  
Meh - this would flash "12:00" at my parents' house just like every other digital clock they own.
 
2012-09-25 10:22:33 AM  

wildsnowllama: So... a crystal is a structure that repeats itself in all three dimensions... so trapping ions in a rotations state would mean it's a repeating patterns not only in three dimensions but also the forth dimension: time. Thus a space time crystal. Except... that's if time is linear... if time isn't linear then you can't make a space time crystal because once you make one that pattern would only exist going forward through time. A true space time crystal would have always existed and... always will. My head hurts.


That made more sense to me than anything in the article.

Time only exists in one direction anyway, the langolers destroy everything in the past.
 
2012-09-25 10:25:21 AM  
Too bad the New Age movement died off. You could sell these by the shed load to stupid hippies.
 
2012-09-25 10:34:39 AM  

MrLint: dilithium


Been there done that...

www.startrek.com
 
2012-09-25 11:28:57 AM  

big pig peaches: wildsnowllama: So... a crystal is a structure that repeats itself in all three dimensions... so trapping ions in a rotations state would mean it's a repeating patterns not only in three dimensions but also the forth dimension: time. Thus a space time crystal. Except... that's if time is linear... if time isn't linear then you can't make a space time crystal because once you make one that pattern would only exist going forward through time. A true space time crystal would have always existed and... always will. My head hurts.

That made more sense to me than anything in the article.

Time only exists in one direction anyway, the langolers destroy everything in the past.


Hold on, I see what you're saying, but what if time isn't linear? I'm talking about time streams and alternate realities.

/This is the postulate I side with, because it is logical and resolves certain time travel paradoxes. I never thought I'd have a spot where I would actually have to apply it to reality, but it's like this:

Suppose a man builds a time machine, goes back in time, and changes history for the worse by accident. He gets depressed and decided to kill himself before he could build the time machine.

...

Now what? Well, with linear time this cannot happen and I guess the universe would give itself a blowjob. But with timestreams, you would have one timestream with a scientist that builds his time machine and alters history, but he would simply fall into a different timestream, in which you have a dead scientist, the same living scientist probably in disguise, and a dysfunctional time machine in pieces (the working one would fade out of existence).

How does this affect a 4D structure, though?
 
2012-09-25 11:33:49 AM  
No wait, both time machines would remain. I'm binding myself to linear thought there... okay, so the scientist could hide/destroy the working one, but still use it even though (in linear time) it had never been made, because (in branching time) one working one had been made, though the point of origin for it ceases to exist. Which means...

O______O

Holy sh*t, the guy could then have a time machine without anyone being able to stop it from being built, because it already was stopped from being built.
 
2012-09-25 01:57:07 PM  
This article reminds me of something....

4.bp.blogspot.com

... can't quite put my finger on it.
 
2012-09-25 04:14:25 PM  
Well, I for one will sleep better knowing that after the heat death of the univerise, we will stll be able to know what time it is.
 
2012-09-25 11:05:51 PM  

Z-clipped: Nah, it can have a beginning and end and still be crystalline. It exists periodically in both time directions from any point other than a terminus. Just not necessarily forever.


OOOO. Good point.
 
2012-09-26 01:24:32 AM  

Skywolf Philosopher: No wait, both time machines would remain. I'm binding myself to linear thought there... okay, so the scientist could hide/destroy the working one, but still use it even though (in linear time) it had never been made, because (in branching time) one working one had been made, though the point of origin for it ceases to exist. Which means...

O______O

Holy sh*t, the guy could then have a time machine without anyone being able to stop it from being built, because it already was stopped from being built.


Your problem is that you're imagining "branching time" as parallel timelines that are referenced to one another. They're not. The reason branching time resolves paradoxes is because each particle has a definite, immutable past.

GuyA in timelineA builds timeMachineA. GuyA goes to the past in timelineB, and kills GuyB before GuyB can build timemachineB (if in fact he was going to do so in the first place). GuyA's past is fixed. His timeMachineA exists, because he built it in his past (in timelineA). There is no timeMachineB, because it was never constructed. IF (here's the kicker) GuyA tries to jump into the past from timelineB, he ends up in timelineC.

He can't cause a paradox in timelineB any more than he could in timelineA. He also cannot return to the past or future of any timeline he's been to, because jumps to the future will only "skip over" sections of his current line, and jumps to the past will always land him in a timeline where he has never been.

Interestingly, he can't even use time travel to get rich at a casino, because even if he jumps to the past, information about the future will never be certain, as there is no way to be sure that any two timelines unfold identically.
 
2012-09-27 10:11:31 AM  
Z-clipped:

Thank you, dude! This really does make a lot of sense. The interesting thing with this theory is that: (1) it would result in the time traveler ending up in Timeline C with no idea where he is or what's going on (like that paradox thing in Dr. Who when he kills himself, if you know what I mean) and (2) your theory negates Dr. Who, so I reject it.
 
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