Word: preshrunk
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Dates: during 1939-1939
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Last week Corning Glass Works of Corning, N. Y. announced a newer marvel which some day soon will make house wives grateful: preshrunk glass. A goblet made of this glass is so dense and tough (i. e., so resistant to expansion and con traction) that it can be heated cherry-red, then dipped in iee water without breaking...
Researchers at Corning put a dish of preshrunk glass on a cake of ice, then poured molten iron into the dish. It did not crack...
...used in industry and in households wherever heat-resistant glass is needed. Expansion of the new glass under heat is imperceptible - three times less than the expansion of the great 200-inch telescope mirror which Corning cast for Caltech. When the next big piece of astronomical glass is made, preshrunk glass will probably be used...