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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.

Finding the Right Recipe: Borosilicate Glass

Otto Schott, the pioneering German glass chemist, made a glass that could reliably do something that didn’t seem possible: endure sudden, uneven temperature shifts without shattering. The key, Schott discovered in 1882, was to have a critical amount of the element boron in the glass recipe. Schott

Plum Woven Heaven

Listen as curator Tina Oldknow, describes the object Woven Heaven, Tangled Earth by artist Susan Plum. For Susan Plum, glass is a metaphor for light. She works with it as a way, she says, to "concretize the invisible." Plum prefers borosilicate glass for its high silica content and its

What is Glass?

Glass is a rigid material formed by heating a mixture of dry materials to a viscous state, then cooling the ingredients fast enough to prevent a regular crystalline structure. As the glass cools, the atoms become locked in a disordered state like a liquid before they can form into the perfect %

Harvey K. Littleton and the American Studio Glass Movement

Harvey Littleton is internationally acclaimed and recognized for his tireless work in founding and promoting the American Studio Glass movement. The movement was “born” in 1962, during two seminal glassblowing workshops at The Toledo Museum of Art. The workshops were led by Littleton, a Cranbrook

Types of Glass

Nearly all commercial glasses fall into one of six basic categories or types. These categories are based on chemical composition. Within each type, except for fused silica, there are numerous distinct compositions. Soda-lime glass is the most common (90% of glass made), and least expensive form of