[time-nuts] Lifetime of glass containers

[Dave Carlson]

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" <hmurray at megapathdsl.net>
To: <time-nuts at febo.com>
Sent: Monday, June 15, 2009 12:23
Subject: [time-nuts] Lifetime of glass containers



dave at 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.




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