Famous quote by Hermann von Helmholtz


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"Heat can also be produced by the impact of imperfectly elastic bodies as well as by friction. This is the case, for instance, when we produce fire by striking flint against steel, or when an iron bar is worked for some time by powerful blows of the hammer"

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This quote is written / told by Hermann von Helmholtz between August 31, 1821 and September 8, 1894. He/she was a famous Physicist from Germany. The author also have 14 other quotes.

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