On Fri, 10 Jun 2005 12:08:48 -0500, (Richard
Harrison) wrote:

I am ignorant of optics and find the analogy difficult to understand.

Hi Richard,

You stand second only to the source that drew this difficulty.

In fact, the "technical" quality of all presentations in this thread
have plunged so far south that even the penguins avoid them.

73's
Richard Clark, KB7QHC