FASTER THAN LIGHT TRAVEL NOW A FACT...

....over limited distances...
http://www.space.com/scienceastronomy/astronomy/light_speed_000530.html
Excerpt from the web page:
"The situation is somewhat similar for faster-than-light experiments to
date, Chiao said. The beams contain a mathematical entity, called modes
-- the patterns by which the waves hang together -- that outpace light.
But there is no physical entity that does so."
What the heck is a mode (a la mode?) and if its just a mathematical
entity how can it travel faster than light if it has no physical
existence - how can the patterns of the light outpace the light itself
and how/why are the two separate things? Is this "modality" some weird
kind of perception changes existence quantum phenomenon?
And, most importantly, does this mean I'll get back my 35mm SLR photos
from the processor before I take them? ;-)

Thebokehking

Re: FASTER THAN LIGHT TRAVEL NOW A FACT...

But the photons are still travelling _tangentially_ at the speed of
light so doesn't that make their particles faster than the speed of
light?
No, just us sub-light photons :-)


Thebokehking

Re: FASTER THAN LIGHT TRAVEL NOW A FACT...

The "flashlight" analogy was very apt. The angular rate of the beam is
constant but at a point far enough along the beam the tangential
velocity of the beam can be many-many times the speed of light ... but
the photons are still radiating radially at the speed of light at that
point. No information is conveyed tangentially, only radially.
Cheers,
Alan
PS: Is that you Lewis?
--
-- r.p.e.35mm user resource: http://www.aliasimages.com/rpe35mmur.htm
-- r.p.d.slr-systems: http://www.aliasimages.com/rpdslrsysur.htm
-- [SI] gallery & rulz: http://www.pbase.com/shootin
-- e-meil: Remove FreeLunch.


Alan Browne

Re: FASTER THAN LIGHT TRAVEL NOW A FACT...

It can 'travel faster than light' precisely because it has no
physical existence.
As the web site says:
"In one sense, it's accurate, ...
in another, it's very misleading."
Look up 'group velocity', there is an animation here:
http://galileo.phys.virginia.edu/classes/109N/more_stuff/Applets/sines/GroupVelocity.html
This is not anything new, for all I know it has been around
since Newton ...
--
Nicholas O. Lindan, Cleveland, Ohio
Darkroom Automation: F-Stop Timers, Enlarging Meters
http://www.nolindan.com/da/index.htm
n o lindan at ix dot netcom dot com


Nicholas O. Lindan

Re: FASTER THAN LIGHT TRAVEL NOW A FACT...

Not in this universe...
...


Doug Robbins

Re: FASTER THAN LIGHT TRAVEL NOW A FACT...

Yes, but if I have a Return Authorization Number can I get my money
back (Minus a small re-stocking fee) next year's camera which I bought
and didn't like but was within next year's 14 day trial return window?
Why put off to next year what you can do today? "Tommorrow Never
Knows"...
Does it mean my next year's money is now in deflation mode or
hyper-inflation mode or GoodYear blimp mode?


Thebokehking

Re: FASTER THAN LIGHT TRAVEL NOW A FACT...

On 2006-11-18 21:37:19 -0500, "thebokehking" <thebokehking@yahoo.com> said:
This year you will get the pictures back before you take them. Last
year you will get them back before you buy the camera.
--
Michael | "He's dead, Jim."


Michael Weinstein

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