IS THE HEAT OF THE SUN INCREASING?
The heat of the sun is not increasing. Researches of the botanist and geologist prove that the solar radiation of heat can have varied only in a very trifling degree since the most remote geological ages —for millions of years. It is estimated that the measure of the heat of the sun at its surface is 18,000 cleg. Fahr., which is five times the highest temperature man can produce artificially—a temperature equal, in fact, to what would result from burning each second a mass of coal (of the best qualitv) 200 miles broad, 200 miles long, and 20 miles high—that is, 8,000,000 cubic miles of coal. This would be about 12,000 millions of millions of tons per second ! It is calculated that only one 2,381,000,000 th part of the sun’s heat reaches us. The whole amount therefore passes either comprehension or calculation. It is, with astronomers, a vexed question as to what becomes of the heat which goes off into space.
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Nelson Evening Mail, Volume LXIV, 8 January 1931, Page 7
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168IS THE HEAT OF THE SUN INCREASING? Nelson Evening Mail, Volume LXIV, 8 January 1931, Page 7
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