Understanding Different Types of Glass
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.
From the press release: From the moment he is handed a possibility of making the first alien contact, Saunders Maxwell decides he will do it, even if doing so takes him through hell and back.
Unfortunately, that is exactly where that journey takes him. The vision that Zimmerman paints of vibrant human colonies on the Moon, Mars, the asteroids, and beyond, indomitably fighting the harsh lifeless environment of space to build new societies, captures perfectly the emerging space race we see today. He also captures in Pioneer the heart of the human spirit, willing to push forward no matter the odds, no matter the cost. It is that spirit that will make the exploration of the heavens possible, forever, into the never-ending future. Available everywhere for $3.99 (before discount) at amazon, Barnes & Noble, all ebook vendors, or direct from the ebook publisher, ebookit. And if you buy it from ebookit you don't support the big tech companies and I get a bigger cut much sooner.
Nice find!
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.
https://static-ptl-us.gcdn.co/dcont/fb/image/periscope.jpg
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.