On Wed, 07 Nov 2007 13:23:12 -0500, "J.B. Wood"
wrote:

In this regard we speak of power being transmitted through a medium.

Hi John,

You might be interested in the work of Debra R. Rolison, Ph.D. Naval
Research Laboratory -- Surface Chemistry Branch. The lead-in would be
the medium of aerogels where her presentation that I attended nearly 5
years ago was called "The Importance of Nothing in Nanostructured
Materials." You will learn from her that power in the form of Heat
(not many other forms left) does not transmit through aerogels.
However, for her research, that is one of those "People" magazine kind
of qwik-facts where her work investigates to a greater depth. She is
quite conversant and has a vice-like grip on the topic.

Ask about Phonons insofar as how Power moves through a medium.

73's
Richard Clark, KB7QHC