One of the best things about grad school is the very interesting things that other people are doing, all around me, everyday. This morning I got to watch Kelsey Wright making the third charge of glass into a glass casting in the hot shop next door. Kelsey is the one in the silver hot suit. It was very interesting to talk to one of the glass grad students about glass and about how the colors that are seen in glass depend on its shape. Since glass refracts light, its outer surface can be more or less like a lens, sending color in many directions.