Word: fahr
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Dates: during 1920-1929
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...muddy bottom water around the S-4 registered 34° Fahr...
...pressure of more than 250,000 Ibs. to the square inch. That is about the pressure of the earth's rocky crust 30 miles down, a pressure under which the friction of rock layers sliding on one another generates at least 1,600° Fahr. Such a hole would produce 4,000 horsepower if only 20% efficient, making steam of any quantity of water piped down it. If such a bore were impracticable, two larger shafts, five miles deep, could be dug by laborers in heat proof, air-cooled suits, and connected by long horizontal passages. At five miles...