"A shutter in front of a laser is open and closed to produce short light
pulses that are sent to  a photodiode, 14 feet away, that has a shutter
in front of it which can be opened  during the time of emission
of          a light pulse or just before the pulse is expected to arrive
at the photodiode.

The intensity of the light pulse on the photodiode is measureably
greater when the photodiode is exposed to the light pulse during the
time of emission and before the expected time of arrival.

This experiment which was carried out  during 1999 and discussed on the
Optics News group during 1996 1997 and 1998 is similar to some more
recent experiments by Lijun Wang at the NEC Research Institute in
Princeton and Mugnai, Ranfagni and Ruggeri of the Italian National
Research Council and published in May 22 Physical Review Letters.

   A New York Times article on May 30 2000 describes these experiments
and notes Dr. Guenter Nimitz at the University of Cologne hods the
opinion that of number of experiments including those of the Italian
group have in fact sent
information                                        superluminally."


http://www.bestweb.net/~sansbury/Index.htm


Gavin Scott wrote:
>
> Dennis writes:
> > Another possible theory that has been tossed out is a "spooky at a
> > distance" action.
>
> Sorry, but "Spooky action at a distance" (Einstein's description) is a well
> established fact.  See any of the recent popular articles on Quantum
> Cryptography for an overview.
>
> I don't believe however that this has anything to do with the recent "faster
> than light" nonsense.
>
> The best explanation I've heard for the "faster than light" issue is that if
> you imagine you're at the beach, and two waves arrive at the shore from
> slightly different directions, then the point at which the two waves
> intersect will travel along faster than either of the waves themselves.
>
> You can see the same thing if you take two sheets of paper stacked on top of
> each other, tilt one by 15 degrees or so, and then slide that sheet left and
> right while watching as the edge of the top sheet passes the edge of the
> bottom sheet.  The "point" at which the two edges intersect moves up and
> down much faster than the sheets of paper are moving relative to each other.
>
> In the "faster than light" experiment this is the kind of thing that's
> happening.  While there is a "thing" you can describe (the intersection of
> two waves) that "moves" faster than the speed of light, clearly there is no
> single physical particle that's moving this fast and there's no way to use
> this to communicate information etc.  It's really more of an illusion than
> anything real.
>
> G.