Understanding Different Types of Glass

Week Three: Ninth Anniversary Fund-Raising Drive for Behind the Black

It is now the third week in my annual anniversary fund-raising campaign for Behind the Black.

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An evening pause: Time for some technology. It is amazing the amount of really smart designs that are hidden in plain sight.

Hat tip Edward Thelen.



  • Phill O

    Nice find!

  • Col Beausabre

    Speaking of armored glass reminds me of a post to his blog by Major Nicolas Moran entitled “Significant Emotional Events” about firefights in Iraq that shows how it performs in the real world. Afterwards he found this had happened one of his periscopes on his M1 tank (round was either 7.62X39 mm or 5.45X39 mm Russian) – he had no idea while the fight was on that it happened.
    Making it even more emotional, Moran had his head out of the hatch during the engagement – experience has shown the risk is more than repaid with situational awareness which is the reason US, British, German and Israeli tank commanders do it – so if the Iraqi had shot just a bit higher, instead of killing the periscope, he would have taken Moran’s head off.

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