On Fri, 24 May 2013 16:09:54 +0100, Sleepalot <
sleep...@yahoo.co.uk>
wrote:
The vacuum curved mirror in a wheel was
by far the easiest, I did the flat segmented
dish in 1973 using the extruded lead H
channels used in church windows.
I had to devise a way to get the pointing
just right, and I think one of the customers
that bought mirror strips and lead from me
used the method to make the big satellite
dishes.
I was invited to Huntsville to learn the
process of getting a government grant,
but I didn't go. Most of the action then
was during Carter, but by 1981 most of
the grants ran out and the solar divisions
went out of business, the prices on most
of the stuff was too high.
I designed (invented) a way to draw
a parabola instead of plotting it, I thought
that was a big deal.