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Confirmed: The universe's speed limit is higher than we thought...
Posted by: Chakravartin
Date: November 18, 2011 06:57PM
Maybe "confirmed" is too strong a word.

Let's call it "mounting evidence of the phenomenon."

[www.wired.com]

Quote

Results from a second experiment uphold the observation that neutrinos are moving faster than the speed of light. The OPERA collaboration, which first reported the superluminal neutrinos in September, has rerun the experiment and detected 20 new neutrinos breaking Einstein’s theoretical limit.

...

“I can now say that the probability of the result being correct has increased from 1 in a million to one in 100 thousand,” wrote physicist Philip Gibbs on the viXra log (though he stressed that those numbers were merely illustrative and not actual calculated values).

Tommaso Dorigo, a physicist at CERN, noted on his blog that there are still other possible sources of error. For instance, the OPERA collaboration’s clock might not have a fine enough resolution to determine exactly when the neutrinos arrived. “The measurement therefore is only a ‘partial’ confirmation of the earlier result: It is consistent with it, but could be just as wrong as the other,” he wrote.
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Re: Confirmed: The universe's speed limit is higher than we thought...
Posted by: space-time
Date: November 18, 2011 07:06PM
it's gonna be a long and interesting debate...
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Re: Confirmed: The universe's speed limit is higher than we thought...
Posted by: DP
Date: November 18, 2011 07:46PM
Never could understand how something with no mass has a speed limit.
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Re: Confirmed: The universe's speed limit is higher than we thought...
Posted by: Drew
Date: November 18, 2011 08:00PM
I can't understand why breaking the speed of light somehow enables time travel. At least that's the context they were using on a news story about this.
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Re: Confirmed: The universe's speed limit is higher than we thought...
Posted by: Chakravartin
Date: November 18, 2011 08:48PM
Quote
Drew
I can't understand why breaking the speed of light somehow enables time travel. At least that's the context they were using on a news story about this.

If the experiment was jiggered properly, the particles could arrive at their destination before they left for it.

Billionths of a second before.

But that is time-travel.

They've been able to send information at superluminal speeds, too.
[skullsinthestars.com]

But while that's time travel of a sort, it's not particularly useful if you're in the mood to see what happens if you shoot your grandpa or pull the fire alarm just before the show at Ford's Theatre.
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Re: Confirmed: The universe's speed limit is higher than we thought...
Posted by: neophyte
Date: November 19, 2011 11:25AM
The distance between the emitter and detector is too short to be outside the error limits of the experimental set-up. Use a detector in Japan, then do the calculations.
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Re: Confirmed: The universe's speed limit is higher than we thought...
Posted by: Winston
Date: November 19, 2011 03:19PM
And doesn't quantum entanglement mean we might be able to send information instantly without regard to distance?

I'm just waiting for them to figure out what dark matter and dark energy is.


- Winston



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Be seeing you.
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Re: Confirmed: The universe's speed limit is higher than we thought...
Posted by: Chakravartin
Date: November 19, 2011 03:45PM
Quote
Winston
And doesn't quantum entanglement mean we might be able to send information instantly without regard to distance?

My (limited) understanding of the phenomenon is that for messages of any value or complexity the behaviors of the particles have to be measured and compared in order to extract the encoded message. To do that, you need at least two observers and an information-feed for each observer telling them what the other observer is measuring from his/her particle. That information has to be transmitted by traditional means so it's traveling slower than light, with the result that your encoded message can't be received and decoded faster than light.

...

Hypothetically, a bit of information might be exchanged via entanglement. It would be on the order of "particle A's spin is slower." You could use something like that as a simple code. ("When the spin of the particle slows, that will mean that you should assassinate the Klingon ambassador." )

That would be a FTL message, BUT from what I gather, entanglement actually deals in probabilities ("by our observations it appears that statistically particle A's spin may be slower" ) and we don't have the technological capability of distinguishing effects that are purposeful and those that are random or caused by environmental factors beyond our control. As a result, what you perceive as the message telling you to kill the Klingon ambassador might just be random noise and you'll have royally screwed the Federation's peace negotiations for nothing.

...

Edit: F-ing smileys...



Edited 3 time(s). Last edit at 11/19/2011 03:50PM by Chakravartin.
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Re: Confirmed: The universe's speed limit is higher than we thought...
Posted by: Black
Date: November 19, 2011 03:51PM
Didn't the federation self-impose a voluntary warp 5 cap in order to slow degradation of subspace? Or did they figure out some sort of emissions equipment?




New forum user map 8/2015: [www.zeemaps.com]
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Re: Confirmed: The universe's speed limit is higher than we thought...
Posted by: MysteryGuest
Date: November 19, 2011 06:39PM
Quote
Black
Didn't the federation self-impose a voluntary warp 5 cap in order to slow degradation of subspace? Or did they figure out some sort of emissions equipment?

Hah! Is it sad that I know what you're talking about?
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Re: Confirmed: The universe's speed limit is higher than we thought...
Posted by: rjmacs
Date: November 19, 2011 10:52PM
Quote
DP
Never could understand how something with no mass has a speed limit.

Neutrinos are not massless, just very very very thin. ;)



rj
AKA
Vreemac, Moth of the Future
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Re: Confirmed: The universe's speed limit is higher than we thought...
Posted by: Winston
Date: November 20, 2011 02:58AM
Quote
rjmacs
Quote
DP
Never could understand how something with no mass has a speed limit.

Neutrinos are not massless, just very very very thin. ;)

So that's what that supermodel's name was.
grinning smiley



------------------------
Be seeing you.
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