On Fri, 18 Jan 2008 07:22:48 -0500, Chuck
wrote:

Thanks for the response, Richard.

Hi Chuck,

You're welcome.

I had consulted Feynman's Volumes I and II prior to posting and saw
nothing there to support the idea that an EM wave performs work in
moving through a region of free space. Hence, my original post.

It is also noteworthy that electrons don't exhibit much friction
either. (Feynman is particularly interesting in regard to friction
too.)

73's
Richard Clark, KB7QHC