From: Kevin Balentine <kevinbalentine@m...>
Date: Thu, 20 Jul 2000 07:25:49 -0700 (PDT)
Subject: Light may break its own speed limit
http://firstworld.myway.com/features/news/default.asp?format=f&newsidx=1 21751740&cat=300&ap_track=NBRK
Light may break its own speed limit
From: Doug Evans <devans@n...>
Date: Thu, 20 Jul 2000 10:08:28 -0500
Subject: Re: Light may break its own speed limit
*** http://firstworld.myway.com/features/news/default.asp?format=3Df&newsidx =3D =121751740&cat=3D300&ap_track=3DNBRK *** Can't see it on my browser; I'm assuming this site requires Java/Javascript. However, if it's about the laser pulse passed through a chamber of cesium, it's been declared very interesting, but not true faster than light. Something about the changed shape of the pulse waveform. Take a DEEP breath. The_Beast -Douglas J. Evans, curmudgeon One World, one Web, one Program - Microsoft promotional ad Ein Volk, ein Reich, ein Fuhrer - Adolf Hitler
From: Michael Sarno <msarno@p...>
Date: Thu, 20 Jul 2000 11:57:25 -0400
Subject: Re: Light may break its own speed limit
> devans@uneb.edu wrote: > However, if it's about the laser pulse passed through a chamber of However, it still seems that INFORMATION has been transmitted at superluminal speed. According to the special theory of relativity, there should be no effect from the laser pulse that exits the cesium chamber faster than the speed of light. -Mike
From: Nyrath the nearly wise <nyrath@c...>
Date: Thu, 20 Jul 2000 19:22:11 -0400
Subject: Re: Light may break its own speed limit
> Michael Sarno wrote:
From: Tony Christney <tchristney@t...>
Date: Thu, 20 Jul 2000 17:56:05 -0700
Subject: Re: Light may break its own speed limit
> Michael Sarno wrote: However, they also say that a light pulse of identical shape to the incoming pulse exited the chamber, so, it would seem that the information regarding the shape of the transmit pulse is being transmitted faster than light. It has been known for a while that information can travel faster than light, by the mechanism of quantum entanglement. This experiment would seem to be of more practical import, however. It is important to note that special relativity is not necessarily being violated. SR makes statements regarding the speed in light in vacuo (to use Einstein's vocabulary.) It is an interesting feat to make light travel faster than it does in vacuo nonetheless. It would have to involve some interesting values for the magnetic permeability and di-electric permittivity, for example. The mention of decreased intensity may indicate that one of them is negative, for instance. There is no physical law preventing this, as far as I know. Still an interesting development! Cheers,
From: Donald Hosford <hosford.donald@a...>
Date: Thu, 20 Jul 2000 23:07:48 -0400
Subject: Re: Light may break its own speed limit
It ought to be interesting to find out what was really happening. This could make computers really fast. Donald Hosford > Tony Christney wrote: > However, they also say that a light pulse of identical shape
From: Tony Christney <tchristney@t...>
Date: Thu, 20 Jul 2000 22:35:54 -0700
Subject: Re: Light may break its own speed limit
> It ought to be interesting to find out what was really happening. This They seem to know what was happening. If you want a light read [:)], try http://www.nature.com/cgi-taf/DynaPage.taf?file=/nature/journal/v406/n67 93/full/406277a0_fs.html I've been chipping away at it for the last few hours. I think I may have to bring out my old texts though. Shudder. Cheers,