Re: ATM re: exchange rate -Reply

[andydtg@alpha1.phoenix.net]

Re:
>>Since you are all reading this, I remember an article I once
>>read on spinning mirrors I think it was mercury or
>>something. Couldn't someone spin molten glass to shape a
>>mirror, or is this done already?

I thought U of Arizona was making *enormous* mirrors using a
spin casting technique in which the entire oven is rotated
around a vertical axis. This produces a blank that requires
far less grinding to get to a finished surface. I think that
molten glass, unlike mercury, is far too viscous to get an
optically precise figure by spinning.

Andy Saulietis / DTG Alt-Az-Fp Drive Systems
12617 Harriet Ln
Santa Fe, TX 77510 USA
409-925-8854 Voice/Fax