Joule
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The joule is the unit of energy in the International System of Units. In terms of SI base units, one joule corresponds to one kilogram-metre squared per second squared. One joule is equal to the amoun
Sir William Siemens by Rudolph Lehmann
James Prescott Joule
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James Prescott Joule was an English physicist. Joule studied the nature of heat and discovered its relationship to mechanical work. This led to the law of conservation of energy, which in turn led to
Joule
…dissipated as heat when an electric current of one ampere passes through a resistance of one ohm for one second. It is named after the English physicist James Prescott Joule (1818–1889). According to the International Bureau of Weights and Measures the joule is defined as "the work done when the point of application of 1…
Joule James sitting
An electric motor presented to Kelvin by James Joule in 1842. Hunterian Museum, Glasgow.
Joule's Heat Apparatus, 1845
James Prescott Joule