Re: Are Aluminum Mirrors in reach of the ATMs?

["Bob May" <bobmay@nethere.com>]

The pros have made aluminum mirrors but for us amateurs, the Pyrex is
probably a lot better as it takes the temp differences a lot easier.  I'd
also prefer to get the aluminum vaporized onto the glass so that when it
comes time to get a fresh mirror all I have to do is take off the old
aluminum and get some new put on.  That's a lot easier than having to
refigure the mirror every time I need a new surface, especially if there's a
lot of corrosion on the surface as the glass will stop the corrosion from
getting any deeper while the aluminum substrate will allow it to get deeper.
Bob May
My new web space address is http://webu.wigloo.com/bobmay/ or
http://nav.to/bobmay
and my new email address is bobmay@nethere.com
"On two occasions, I have been asked [by members of Parliament], 'Pray, Mr.
Babbage, if you put into the machine wrong figures, will the right answers
come out?' I am not able to rightly apprehend the kind of confusion of ideas
that could provoke such a question."
-- Charles Babbage