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Old 2013-03-17, 1:45am
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Lyssa Lyssa is offline
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Join Date: Dec 11, 2007
Location: Los Osos, San Luis Obispo County, California
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Quote:
Originally Posted by eileenh28 View Post
I'm curious about the history behind annealing glass as electric kilns with digital pyrometers are recent inventions.



This piece of glass is from the 1st to 5th century A.D. Did the manufacturer understand annealing other than if he cooled the glass too slowly it would shatter?

I'm genuinely want to know. There are glass pieces hundreds and thousands of years old. Were they properly annealed as the term is now known?
Great question and beautiful vase, but did you mean, "if he cooled the glass too quickly it would shatter"? I wonder of Dunham addresses it in his books. Anyone know?
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