Oldtime theologians thought of hell in terms of fire and brimstonevolcanic heat coming from inside the earth, whose core is probably no hotter than 1,500° C. Modern electrical engineers can produce steady temperatures of 2,000° C. in furnaces for the steel industry, and fortnight ago Chemist Robert Browning Sosman of U. S. Steel Corp. announced that with a heliostat and focusing mirror he had been able to capture 3,000° of the sun's heat (TIME, Dec. 21). With gas, temperatures as high as 4,600° have been obtained, but they could not be maintained long. Last...
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