SHATTERPROOF GLASS USED IN SPECTACLES (Nov, 1934)
SHATTERPROOF GLASS USED IN SPECTACLES
Hammer blows cannot shatter the glass in safety spectacles recently developed in England. Under the impact of the metal, the lenses crack as does the safety glass used in automobiles, but the broken fragments will not scatter. The glasses are designed for athletes, workers, and others who run the risk of having their spectacles struck by flying objects.
Is it me, or does that look just painful?
Hopefully those lenses weren’t shattered while the guy was wearing them…that hadda hurt.
Alan
Comment by mrchurchill109 — August 15, 2007 @ 4:30 am
“No just hold perfectly still. This won’t hurt a bit…”
“DAMMIT, I TOLD you not to move!”
Comment by Stannous — August 15, 2007 @ 1:43 pm
if this work, it will be pretty cool.
Comment by mr.beaver — September 29, 2007 @ 12:21 am
Why is this under weird section?
We have shatterproof glass today. There are vynil stickers glued to both sides of the glass to prevent it from flying off when cracked.
Comment by Phone — May 30, 2008 @ 2:14 pm
Most eyeglass lenses today aren’t glass at all, but polycarbonate.
It takes a LOT to break optical-grade polycarbonate; I don’t think it’s even possible to “shatter” it except under lab-test conditions (in real live, the frames’ll bend or break first).
Comment by nlpnt — May 30, 2008 @ 2:58 pm