Dr Abbot’s Solar Oven

7月 22, 2010 · Posted in 未分類 

Lost tonnages of atomic helium plunge from the sun in every direction as radiant energy every second. Our earth, a kind of pinhead in space, intercepts only one two-billionths of the total solar output. This nevertheless equals, in three minutes’ time, the United States’ annual consumption of power from all sources. In other words, in a single hour the earth receives solar power equivalent to that produced by the burning of twenty-one billion tons of bituminous coal.

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