Cecil Moore wrote:

Tim Wescott wrote:

All this is covered in a good college E&M course.


Uhhhh Tim, those were rhetorical questions aimed at people
who believe that the energy in EM waves can slosh around
at sub-light speeds. Where the heck did that idea come
from anyway?

If you're responding to something you should post things as a followup,
even if it's a continuing argument -- saves us new folks to the list
some confusion.

Besides, energy in EM waves can and does travel (or "slosh around", if
there's reflections) at sub-light speeds, specifically in coax,
waveguides and just about any bulk material (including air) that has an
index of refraction higher than 1.

--
-------------------------------------------
Tim Wescott
Wescott Design Services
http://www.wescottdesign.com