Half of Earth's Heat Is from Nuclear Fission [Factoid]

Around 20 terrawatts of heat, which is about double what us humans use, originates from decaying radioactive materials such as potassium, uranium and thorium. The energy released from these materials is so powerful that they can move mountains, according to research undertaken in Japan and Italy. [Scientific American] More »

Source: http://feeds.gawker.com/~r/gizmodo/full/~3/qx4aOt2UkDk/half-of-earths-heat-is-from-nuclear-fission

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