[mturmon]

This reads as a bit of a love letter to Corning Glass. If you're ever in upstate NY, the Corning Glass museum (in Corning, naturally) is perfectly worth visiting. They have ancient glass from Egypt, and a copy of the huge 200-inch glass mirror that they made for Palomar Observatory, among other trinkets.

[DanBC]

On a tangent, here's a youtube clip of cleaning and re-coating an 8 metre mirror.

https://www.youtube.com/watch?v=CkV8RRRu7gE

[ISL]

The museum's about 50% technical glass and 50% art. It's one of my favorite museums anywhere.