As far as the collecting mirrors function, a larger absorptions surface
would do the same thing and not require polishing on a regular basis and be
a lot easier to keep clean than multiple reflective surfaces, keeping the
maintenance costs lower.
--------------
"Gerhard K" wrote in message
news:24815700.469.1317318130399.JavaMail.geo-discussion-forums@vbat14...
I�m very interested in your opinion!
Gerhard