Science: Pouring Day

Before dawn one day last week workmen scurried about a dim, vast room in the Corning Glass Works at Corning. N. Y. For one day they were to be both stagehands and actors. For weeks they had rehearsed every movement they were to make during one eleven-hour performance—the pouring of the 2OO-inch (16 ft. 8 in.) telescope mirror for California Institute of Technology. High as a house in the centre of the room stood a furnace which had been under fire for three weeks. In its great belly was a 34-ton lake of...

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