[time-nuts] Lifetime of glass containers

Chuck Harris cfharris at erols.com
Mon Jun 15 16:17:18 EDT 2009

That's just it, the glass wasn't flat to begin with.
Early glass was poured out into sheets, and was quite
non uniform in thickness.

-Chuck Harris

Dave Carlson wrote:
> 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

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