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Why Is Hot Inside A Coal Mine

Why Is Hot Inside A Coal Mine

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Observations were then given upon temperature at every 100 feet in the forman shaft of the overman mine, running from 53 degrees at a depth of 100 feet to 121.2 degrees at a depth of 2,300 feet.The temperature increased 100 to 1,000 feet deep, increase 1 degree in 29 feet.100 to 1,800 feet deep, increase 1 degree in 30.5 feet.

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