Free Republic
Browse · Search
Bloggers & Personal
Topics · Post Article

To: 2ndDivisionVet

The epitome of this effect is the propagation of a plane wave, at or near the speed of light, at a slightly oblique angle to a surface.

The point of detection of this wave will propagate at a speed faster than the speed of light, and in the limit will be observed simultaneously along an arbitrary length.

This is a set piece in the elementary exposition of relativity theory, so don’t get excited!


2 posted on 09/02/2017 12:14:49 AM PDT by dr_lew (I)
[ Post Reply | Private Reply | To 1 | View Replies ]


To: dr_lew

Uh....what?


11 posted on 09/02/2017 3:35:05 AM PDT by Wu (Excuse me while I kiss the sky......)
[ Post Reply | Private Reply | To 2 | View Replies ]

To: dr_lew
The epitome of this effect is the propagation of a plane wave, at or near the speed of light, at a slightly oblique angle to a surface.

Exactly and as those two surfaces are bought together compressing the plane wave, the speed of the sound is heightened far exceeding the speed of sound and the Road Runner but never the Waskally Wabbit.

14 posted on 09/02/2017 4:11:02 AM PDT by eartick (Been to the line in the sand and liked it, but ready to go again)
[ Post Reply | Private Reply | To 2 | View Replies ]

To: dr_lew

So what is this bit about making light pulses travel backward?


15 posted on 09/02/2017 4:32:48 AM PDT by Pontiac (The welfare state must fail because it is contrary to human nature and diminishes the human spirit.L)
[ Post Reply | Private Reply | To 2 | View Replies ]

To: dr_lew
Just to give some background on how not news this is, this effect was mentioned in the printed text for my Navy electronics school in the module on waveguides. This was in 1982.
29 posted on 09/02/2017 8:50:14 AM PDT by ComradeBork (Consistency is the hobgoblin...)
[ Post Reply | Private Reply | To 2 | View Replies ]

Free Republic
Browse · Search
Bloggers & Personal
Topics · Post Article


FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson