On Thu, 10 Dec 2009 06:56:35 -0800 (PST), the infamous RicodJour
scrawled the following:

On Dec 10, 6:50*am, Phisherman wrote:

Most glass is a liquid and sags. * In an old house you may see the
bottom of the windowpane is thicker than the top portion. * Quartz
glass is a solid--probably less sag over time and transmits more
lightwaves than regular glass.

I believed that for a long time until it was pointed out to me that
there are intact glass windows in Roman and Egyptian buildings which
would belie the flowing glass myth. If the glass sagged enough to be
noticeable in a two hundred year old house, the sag in two or four
thousand year old glass would be very noticeable, and it's simply not.

http://www.glassnotes.com/WindowPanes.html

http://dwb4.unl.edu/Chem/CHEM869A/CH...en/florin.html

I scratched the windows in the new door I put in the utility room 7
years ago. It's a halflite and the scratch was right next to the door
knob. I was taking the label off with a scraper. Fingernails, water,
soap, and several chemical solvents proved that it wasn't just glue,
it was a scratch, and I fumed for weeks about it.

A few months later, I was cleaning that window and couldn't find the
scratch. To this day, there is no scratch on that lite. This leads me
to finally believe in that "liquid glass" thang, KWIM,V?

--
To know what you prefer instead of humbly saying Amen
to what the world tells you you ought to prefer,
is to have kept your soul alive.
-- Robert Louis Stevenson