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.
Video
Listen as glass artist William Gudenrath describes the technique of making a core-formed vessel. Ancient glassmakers discovered a technique called core forming. A core was formed from dung and clay, then dried. The core was covered with glass. After cooling, the core was scraped out. The bottles