The Art of Glassmaking

The Art of Glassmaking

This article relates to Glass House

At one point in Glass House, Brian Alexander describes his childhood experience of peering into one of the glass manufacturing plants in his home town: "Nuns had spent years engraving images of hell on my imagination. The flames shooting out of the squat stack on the roof, the white-red glow of the furnace inside, the gray shadows of the men hoisting their gatherers to collect glass from the inferno sure looked like hell." Even in the twenty-first century, glassmaking is a hot and sometimes dangerous occupation, one with a history that is thousands of years old.

According to a (scientifically dubious) account by the Roman historian Pliny, glassmaking was discovered accidentally, when Phoenician sailors heated their cooking pots and discovered the fire's heat had turned beach sand into glass. In reality, glassmaking was likely developed in ancient Mesopotamia in roughly the third millennium BCE as artisans applied high-heat techniques from ceramics or metalworking to other materials.

Over the following centuries, various cultures developed their own glassmaking techniques, and the first glassmaking "manual" dates from 650 BCE, with instructions on glassmaking appearing on tablets in the library of Assyrian king Ashurbanipal. Over the next millennia, glassmaking spread throughout a variety of cultures and geographic centers, including into Europe.

Fast-forwarding a few hundred years, the era of modern glass production on an industrial scale began in the late 1600s in England, where the addition of lead oxide to molten glass greatly improved its ability to be worked on a mass scale, as well as its clarity, allowing Britain to overtake Venice in glass production. By the late 1800s, glass production was becoming automated, and in the early twentieth century in the United States, the first fully automated glassmaking machines were introduced, using techniques similar to those still used today.

Glass blowing, courtesy Alicia D. Glassworks
Glass vase from Mesopotamia, courtesy of www.ancient-origins.net
17th Century British glass, courtesy of www.antiquecolouredglass.info

Filed under Music and the Arts

This "beyond the book article" relates to Glass House. It originally ran in May 2017 and has been updated for the January 2018 paperback edition. Go to magazine.

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