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Re: How to tell tempered glass from regular glass
> Steven Ku wrote:
> I just ordered a tank from the LFS and specified Tempered glass. Any way
> to tell the difference besides shattering the thing?
The first gravel scratch will tell you. No problem! :-)
Actually, you can see the little square stress patterns if you put the glass
between crossed polarizers. The polarized light near the horizon, outdoors,
makes the grid-like patterns obvious in auto glass if you are wearing
Polaroid sun glasses.
Wright Huntley, Fremont CA, USA, 510 494-8679 huntleyone at home dot com
"People constantly speak of 'the government' doing this or that, as they
might speak of God doing it. But the government is really nothing but a
group of men, and usually they are very inferior men." --H. L. Mencken
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