Just to give some additional background - that probably added to the urban myth
about the 'flow' of glass.
Anyone who cuts glass with a dry diamond (which my wife - a picture framer -
does on a daily basis) knows that - having made the scratch - the glass will
break easily by flexing the glass
Ok, veering a little furtherG I have a gallery wrapped picture that means a
LOT to me and is probably pretty valuable. It is a large 20x30 pic of the Moon
with autographs of about 20 Astronauts and members of the Space Program from
the Apollo era. What would be the best way to frame that to
Ask for archival quality materials when you get it framed. They should
also offer uv glass for added protection. Most important: keep it out of
direct sunlight, even a bright room may fade the signatures with time. A
good frame shop should be able to get you what you need.
JGard
From:
!)
Cheers, John
John Pickard
john.pick...@bigpond.com
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Thanks! I was not sure how one would frame a gallery wrap print. Ill look
into it ASAP. Yes, I keep it on the wall furthest from sunlight. But, it IS
my pride and joy! Along with a globe of the Moon with the same signatures.
Karon Adams
Accredited Jewelry Professional (GIA)
You can send a
I once heard that glass is technically classified as a “super viscous liquid”
at room temperature. I’m not sure how viscosity is measured (flow rate?
resistance to movement? atomic structure?) But one would assume that anything
that is viscous would flow. Wonder what would happen if you put a
If you X-ray a piece of glass crushed to a powder, you get a lousy 'pattern',
which shows nothing really apart from a general 'hump' because it is an
amorphous (non-structural) compound. If you X-ray a similar crushed powder of a
crystalline compound, you get a pattern of a series of sharp
So, wait, does that mean I was right in the first place? Even more
importantly, does that mean Bill agreed with me?
Karon Adams
Accredited Jewelry Professional (GIA)
You can send a free Rosary to a soldier!
www.facebook.com/MilitaryRosary
www.YellowRibbonRosaries.com
From:
Accepted that glass atoms can migrate because they are not linked together, the
following question is : at wich speed?
I found the following in wikipedia in the Glass page:
Writing in the American Journal of Physics, physicist Edgar D. Zanotto states
...the predicted relaxation time for
My two cents worth, having worked with glass for decades.
1. don't confuse an object bending under its own weight with the object being
fluid.
2. since this news group deals with sunlight, we should remember that light
is both a particle and a wave, and there were heated discussions back
If a tree falls in the forest where no one can hear it, does it make a
sound?
On Thu, Aug 11, 2011 at 3:24 AM, Simon [illustratingshadows
illustratingshad...@yahoo.com wrote:
My two cents worth, having worked with glass for decades.
1. don't confuse an object bending under its own weight
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