Glass - S8.E38

Glass may be our most versatile material. It sheathes skyscrapers, contains liquids, aids vision, allows communication at unimaginable speeds, and yet remains a medium for artistic expression. We see how, when man learned that heating certain rocks and minerals together could produce glass, this remarkably transparent yet strong material began working its way into our culture and everyday life. As we look to its future, we learn that the only limit to what glass may do is our ability to imagine it!