Word: temperatures3
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Dates: during 1953-1953
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...engines often reach temperatures3,700° Fahrenheit at the core of their blast hot enough to burn ordinary steel like paper. The planes themselves are approaching speeds at which aluminum aircraft skins would lose their strength, then melt. Nor is heat the only problem. Building of the first atomic reactors disclosed the fact that most metals absorb or "eat up" the atomic neutrons needed to provide the fission and motive power...
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