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All About Glass

All About Glass

This is your resource for exploring various topics in glass: delve deeper with this collection of articles, multimedia, and virtual books all about glass. Content is frequently added to the area, so check back for new items. If you have a topic you'd like to see covered, send us your suggestion. If you have a specific question, Ask a Glass Question at our Rakow Research Library.

On a Thread of Glass: Optical Fibers for Communication

I have heard a ray of the sun laugh and cough and sing!     — Alexander Graham Bell It was a bright idea: use sunlight to transmit the human voice. In 1880, American innovator Alexander Graham Bell tried it, using a thin, flexible mirror to reflect a light beam onto a distant receiver. His voice