A demonstration of glassblowing techniques by glass artist William Morris. [4:42]

Mold-blown glass is made by blowing hot glass into a mold made of clay, wood, or metal. Watch a glassmaker use a mold with incised designs (footage [1:48] from the Corning Museum of Glass).

Ancient glass makers near Jerusalem discovered they could inflate hot glass to make vessels quickly and more cheaply. Watch this ancient technique of free-blown glass (footage [2:04] from the Corning Museum of Glass). Created by Getty...

Mold-blown glass is forced against the inner surfaces of a mold and assumes its shape. Watch this video [1:28] to see this ancient process (footage courtesy of Mark Taylor and David Hill-the Roman Glassmakers). Created by Getty Museum.