CoE is not the whole story

[Stephen Richard]

CoE does not tell you everything.  E.g.

http://glasstips.blogspot.com/2009/05/coe-varies-with-temperature.html

And see a more extensive discussion on the Bullseye site:

http://www.bullseyeglass.com/pdf/technotes_tipsheets/TechNotes_03.pdf

Stephen Richard

blogs at: http://www.verrier-glass.blogspot.com/ and  http://www.glasstips.blogspot.com/