Good news for causality [Speed of Light]

PhysicsWeb ^ | 18 November 2004 | Belle Dumé

[PatrickHenry]

The figure the article mentions is at the original article, so you'll have to follow the link.

[PatrickHenry]

Science list Ping! This is an elite subset of the Evolution list.
See the list's description in my freeper homepage. Then FReepmail me to be added or dropped.

[longshadow]

Any bets on how many posts it will take for the Luddites to swarm?

[Tarpaulin]

"confirmed that information cannot be transmitted faster than the speed of light."

They obviously did not perform research on my ex-wife in this study.

[djf]

What does this say about Bell's work?

I thought all his stuff was confirmed by the Aspect experiments.

[PatrickHenry]

The first 10 posts will be of the "Bush did it" type.

[eagle11]

I'm curious about the "interval" between (1.0)C and (1.76)C. What vacuum property causes this (0.76) C difference? Interesting article! Ping.

[PatrickHenry]

What vacuum property causes this (0.76) C difference?

I donno. I just post 'em.

[billorites]

Ans. "a mean group velocity 1.76 times the speed of light in vacuum"
Ques. How long before the first Kerry insider writes a 'tell all" book?

[flashbunny]

Well there goes my flux capacitor design.

[cripplecreek]

You might be suprised at how many "luddites" the "I'm smarter than you" comments will draw. If insults are the cost of learning, I'll just keep my pride and my ignorance thank you.

[VadeRetro]

Within the first twenty posts there will be a limerick.

[djf]

A couple of related items:

http://math.ucr.edu/home/baez/physics/Quantum/bells_inequality.html

http://www.drchinese.com/David/EPR_Bell_Aspect.htm

[Pahuanui]

Shouldn't this more accurately read, "Physicists in Switzerland have confirmed that information cannot be transmitted faster than the speed of light when using light as the medium and/or reference point"?

[Joe Miner]

Since only photons at the front give rise to a signal...

But since a photon can be in two places at one time until you observe it, can you really say one was breaking the speed limit while on a cell phone?

[Tarpaulin]

"Within the first twenty posts there will be a limerick."

There was a young lady named Bright
Who traveled much faster than light
She started one day
In a Relative way
And returned on the previous night.

[VadeRetro]

Thanks for preventing me from having to fulfill my own prophecy!

[Gibtx]

and next week they will prove that it can be ...... like the sound barrier all this obsessing about something that is so obvious ..... Albert would be very disappointed...

[PatrickHenry]

Within the first twenty posts there will be a limerick.

When trying to undo causality,
Fritz removed himself from reality,
When he saw what he'd done,
He said: "This is such fun!"
"I never did really want to be."

It takes a minute or two to compose one of these things.

[RightWhale]

Yes. The special theory of relativity is based on electromagnetic phenomena and the photon. The general theory adds gravity. There are apparently two other kinds of fields. Is there another way to look at this?