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.

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Elements Glass at 2300°: Holiday Groove
Video

At 2300° in December 2013, the master minds behind Elements Glass of Portland, Ore., created a colorful Caribbean sculpture live on the Hot Glass Show stage.

Cory Dunnington: Celebrity Cruise Scholarship Recipient
Video

Along with stained glass, Cory Dunnington makes fused and cast glass art. Color inspires much of Cory's work, and Heike Brachlow's kilnworking class, Shaping Color: From Raw Materials to Finished Sculpture at The Studio, gave her the unique opportunity to create the colors she wanted to

2300°: Fire and Wine (January 19, 2012)
Video

The Corning Museum of Glass presents its popular 2300° series of art happenings each year, featuring live music, hot glassmaking, and great food and drink. This video gives you an inside look at the festivities at 2300°: Fire and Wine (Jan. 19, 2012), including music by The Weber Brothers,

2300°: Mardi Gras Snow Day (February 16, 2012)
Video

The Corning Museum of Glass presents its popular 2300° series of art happenings each year, featuring live music, hot glassmaking, and great food and drink. This video gives you an inside look at the festivities at 2300°: Mardi Gras Snow Day (Feb. 16, 2012), including music by Curley Taylor &

(No sound) Medieval Glass: Making a 14th/15th century bottle
Video

This video shows the technique of making a 14th/15th century bottle, an object in the exhibition Medieval Glass for Popes, Princes, and Peasants, on view at The Corning Museum of Glass from May 15, 2010 to January 2, 2011.

(No sound) Medieval Glass: Making a cage foot
Video

This video shows the technique of making a cage foot, an object in the exhibition Medieval Glass for Popes, Princes, and Peasants, on view at The Corning Museum of Glass from May 15, 2010 to January 2, 2011.

(No sound) Medieval Glass: Making a stangenglas
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This video shows the technique of making a stangenglas, an object in the exhibition Medieval Glass for Popes, Princes, and Peasants, on view at The Corning Museum of Glass from May 15, 2010 to January 2, 2011.

Gold Leaf
Video

Gold decoration has been popular since Egyptian times. Roman, Byzantine, and Islamic workshops also used it frequently. Beginning in the Renaissance, gold decoration became an indispensable part of the Venetian style.

(No sound) Medieval Glass: Making prunts
Video

This video shows the technique of making prunts, seen on objects in the exhibition Medieval Glass for Popes, Princes, and Peasants, on view at The Corning Museum of Glass from May 15, 2010 to January 2, 2011.

Cutting Glass with a Diamond Saw
Video

Throughout glass history, workers have needed to saw pieces of glass cleanly. Using string and gritty mud-like slurry, ancient Egyptians and Greeks, for example, spent days accomplishing what the modern electric diamond saw does in seconds.

Grinding Glass
Video

Grinding is a process of removal by abrasion. People were grinding stone tools long before the discovery of glassmaking.

Spiral Thread and Handle on Roman Bottle
Video

Decoration in glassblowing at the furnace doesn't get more basic than this. Although it looks easy, glassblowing students struggle for weeks with every step forward!

(No Sound) Medieval Glass: Making a multi-sided beaker
Video

This video shows the technique of making a multi-sided beaker, an object in the exhibition Medieval Glass for Popes, Princes, and Peasants, on view at The Corning Museum of Glass from May 15, 2010 to January 2, 2011.

Practical Applications of Tension in Glass
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"Annealed glass," "safety glass," "tempered glass"... Confused? Learn the differences through these Glassbreaking Demos.

Ice Glass
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A spectacular demonstration unique to glassblowing, ice glass was widely popular in Low Country cities like Amsterdam during the 17th century. Did the abundant canals of Amsterdam and of Venice, where the process was invented, inspire this watery idea?

(No sound) Medieval Glass: Making a prunted beaker
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This video shows the technique of making a prunted beaker, an object in the exhibition Medieval Glass for Popes, Princes, and Peasants, on view at The Corning Museum of Glass from May 15, 2010 to January 2, 2011.

Hand Sanding Glass
Video

Everyone knows that wood can be sanded to change its finish; surprisingly, so can glass. Specialized grinding blocks coated with industrial diamonds are best, but regular sandpaper works too.

Dremel Tool
Video

The next time you're in the dentist's chair, know that the grinding you hear—and feel—could also be taking place on a piece of glass! The very same tool can be used by artists to create beautiful engraved effects.

Raw Materials of Glass
Video

See and understand the magical process of making glass from simple materials, by using great heat. Until the most recent times, glassmaking was a closely guarded secret passed on within workshops or even families from one generation to the next, often over hundreds of years.

Prince Rupert's Drop
Video

Don't try this at home! A classic demonstration involving exploding glass: it spectacularly shows both the great strength and vulnerability of glass that has been rapidly cooled from the molten state.

Jobs in a 19th-Century Glass Factory
Article

In a typical glass factory in earlier times, most workers would work as unskilled laborers. An unskilled laborer was usually called "boy," a term which did not refer to the age of the individual. Although girls were known to perform other work, they often worked as inspectors and packers

Ladle Casting
Video

Molten glass can be cast by a method virtually identical to that used for casting metal. Here, molten glass at 2300 degrees Fahrenheit is ladled into a mold made of sand. The process is relatively easy as hot glassworking processes go...but hot!

Cutting Glass
Video

Cutting thin sheet glass is almost as easy as it looks in this video clip...but not quite! Curves really are much trickier than straight lines. The process shown would have been completely familiar to medieval window glaziers.

Flameworking Glass Sculptures
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Learn about flameworking with Corning Museum of Glass experts. Flameworking is the technique of taking glass rods or tubes and heating them in a concentrated flame until they become soft.

Chunk Casting
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Chunks of glass are placed in a mold, then heated in a kiln until the glass softens and flows downward to gradually fill the mold. Popular with contemporary artists, this method avoids the need for a giant melting furnace filled with molten glass.

Coloring Objects
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Five different methods of using colored glass are demonstrated; some produce a uniformly colored object, others a splotchy or mottled effect. Glass artists today use whatever method best suits their aesthetic choices.

Bowl with Roman Foot and Folded Edge
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Roman glassworkers, tirelessly creative and inventive, were fond of folding and manipulating inflated glass in a variety of ways for different purposes. Two of their characteristic structures—both functional and beautiful—are demonstrated.

Cracking Off
Video

As if glassblowing wasn't fast enough—it takes under three minutes to make a Roman bottle—cracking-off made the process even faster. This technique was well known by AD 20 or so, and cut the manufacturing time of simple tumblers in half.

Cane Making
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While glass canes can be used alone, for example as stirring rods, usually they are incorporated in vessels or sculpture. An infinite variety of decoration is possible. Here we see two examples that are intended to be viewed from the side.

Building a Goblet on a Blowpipe
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Here is virtuoso Venetian-style glassblowing "without a net." One mistake and all is lost! Where "making a goblet from parts" allows mistakes to be isolated and destroyed, this process moves relentlessly forward, allowing no retakes.

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