Category
The sources the world draws energy from: the fossil fuels, nuclear fission, the renewables of sun, wind, water and earth, and the carriers and prospects beyond them. The machines that convert or store these sources belong to technology, not here.
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Sources
United States Energy Information Administration Official Site
World Nuclear Association Information Library
World Nuclear AssociationContains: Uranium, Supply of UraniumQuote, Contains: Uranium, Supply of Uranium
Uranium is a relatively common element in the crust of the Earth (very much more than in the mantle). It is a metal approximately as common as tin or zinc.
Wikipedia
Wikimedia FoundationContains: Oil Shale, IntroductionQuote, Contains: Oil Shale, Introduction
Oil shale is an organic-rich fine-grained sedimentary rock containing kerogen (a solid mixture of organic chemical compounds) from which liquid hydrocarbons can be produced.
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