Join Date: Feb 2011
Location: Earth, The Milky Way
oh wow! on Corning's site they have a time line of their company's major events; this is the company that made the mirror blank for the Hale telescope up on Mt. Palomar back in 1935. at the time it was the world's largest piece of glass, it measures 200 inches across. i watched the better part of a documentary on the construction of it, it's really interesting actually. the first lens got ruined. the second one was placed in a special cooling chamber to be brought down a few degrees at a time over the course of a year to ensure it wouldn't crack! seems like i remember for some reason they were in a hurry and took it out early, still managed to be okay though. maybe im just a sucker for science but i thought it was an awesome documentary.
and ya, xmas one, i think you are right. pretty sure i read on there somewhere that the thickest it can be is 2mm. oh well. it's still a great idea, but i guess they either can't or don't have enough demand to bother making it significantly thicker.