I am interested in the glass talk, actually. I misspoke. But I don't go too far into it -- all the chat about rods, COEs, etc. is something I scan but do not study extensively, because I can't use the info beyond appreciating the art form.
This is why it can bore me.
If you want to know about a term someone uses here, use google:
~~ Sooz To live a creative life, we must lose our fear of being wrong. ~~Joseph Chilton Pearce