[ATM] Metallic Mirrors Vol 9, Issue 20

[artbianconi@blast.net]

In the past I thought what it might be like,  making a parabolic 
mirror out of molten glass, using centrifugal force to generate 
the curve.

Pour the lava like stuff on a rotating platen and let the 
centrifugal force "stretch" the glass into a concave meniscus. I 
have not a clue if anyone has ever made a mirror that way. 

Then I saw these posts on metallic mirrors and wondered what it 
would be like to spin a quart of room temp mercury into a 
parabolic shape. Change the f stop by speeding up or slowing down 
the "dish"! I wonder if mercury would be reflective enough.

I allow myself to think "unthinkable", out of the box thoughts 
once a month. Some, like this one,  can be expressed in public!

Art


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