<br><br><div><span class="gmail_quote">On 11/21/06, <b class="gmail_sendername">spike</b> <<a href="mailto:spike66@comcast.net">spike66@comcast.net</a>> wrote:</span><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Robert, it's from Maxwell's equations. Recall that when a material reflects a photon, the photon induces a circular magnetic field in the material. In general better conductors make better reflectors. [snip]<br></blockquote>
<div><br>I strongly suspected that someday someone would come up with a good reason for me to go back to school... :-(<br><br>R.<br><br></div><br></div><br>