That COULD be an illusion. Old glass was not very uniform and I've been told the artisans always installed it thick end down.
FWIW, -John ============= > Not to charge in, but I've looked at ordinary window pane glass in very > old > buildings and you can actually see the rippling effect that occurred over > time, showing the "flow" of the glass toward the lower edge of the pane. > One > presumes that the panes were relatively uniform when installed 120 years > earlier. Sounds liquid to me. > > Dave > > ----- Original Message ----- > From: "Hal Murray" <hmur...@megapathdsl.net> > To: <time-nuts@febo.com> > Sent: Monday, June 15, 2009 12:23 > Subject: [time-nuts] Lifetime of glass containers > > > > d...@uk-ar.co.uk said: >> Or as someone else suggested, use a Glass container. So long as you >> don't want it to last for many 100's of years, as Glass is not a >> solid, it is a "super cooled fluid" and as such it flows like Ice over >> time, just that it takes much much longer to do so! > > As best as I can tell, the glass-is-a-liquid story is bunk. > http://en.wikipedia.org/wiki/Glass#Behavior_of_antique_glass > > I was going to ask if anybody had tried to measure it. That seems like > something a time-nut would know about. > > The astronomers have been running tests for years. Their mirrors don't > seem > to sag enough to notice, and they are very good at noticing tiny > distortions. > > -- > These are my opinions, not necessarily my employer's. I hate spam. > > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.