James Prescott Joule
1818 CE–1889 CE · Salford
James Prescott Joule (; 24 December 1818 – 11 October 1889) 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 the development of the first law of thermodynamics. The SI unit of energy, the joule (J), is named after him. He worked with Lord Kelvin to develop an absolute thermodynamic temperature scale, which came to be called the Kelvin scale. Joule also made observations of magnetostriction, and he found the relationship between the current through a resistor and the heat dissipated, which is also called Joule's first law. His experiments about energy transformations were first published in 1843.
Adapted from Wikipedia, licensed under CC BY-SA 4.0.
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- Richard Owen· 1804 CE–1892 CE
- Charles Darwin· 1809 CE–1882 CE
- Robert Bunsen· 1811 CE–1899 CE
- Urbain Le Verrier· 1811 CE–1877 CE
- Claude Bernard· 1813 CE–1878 CE
- James Joseph Sylvester· 1814 CE–1897 CE
- Julius Robert von Mayer· 1814 CE–1878 CE
- Karl Weierstrass· 1815 CE–1897 CE
- Léon Foucault· 1819 CE–1868 CE
- Florence Nightingale· 1820 CE–1910 CE
- Pafnuty Chebyshev· 1821 CE–1894 CE
- Hermann von Helmholtz· 1821 CE–1894 CE
- Arthur Cayley· 1821 CE–1895 CE
- Rudolf Virchow· 1821 CE–1902 CE
- Gregor Mendel· 1822 CE–1884 CE
- Rudolf Clausius· 1822 CE–1888 CE
- Louis Pasteur· 1822 CE–1895 CE
- Leopold Kronecker· 1823 CE–1891 CE
- Gustav Kirchhoff· 1824 CE–1887 CE
- Thomas Henry Huxley· 1825 CE–1895 CE
- Ferdinand Cohn· 1828 CE–1898 CE
- August Kekulé· 1829 CE–1896 CE
- James Clerk Maxwell· 1831 CE–1879 CE
- Alfred Nobel· 1833 CE–1896 CE
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- William Gladstone· 1809 CE–1898 CE
- Ulysses S. Grant· 1822 CE–1885 CE
- Abdulaziz· 1830 CE–1876 CE
- Washakie· 1804 CE–1900 CE
- Cetshwayo· 1826 CE–1884 CE
- Manuelito (Hastiin Ch'il Haajiní)· 1818 CE–1893 CE
- James A. Garfield· 1831 CE–1881 CE
- Otto von Bismarck· 1815 CE–1898 CE
- Ouray· 1833 CE–1880 CE
- Alexander II· 1818 CE–1881 CE
- Rutherford B. Hayes· 1822 CE–1893 CE
- Chester A. Arthur· 1829 CE–1886 CE
- Victor Emmanuel II· 1820 CE–1878 CE
- Pedro II of Brazil· 1825 CE–1891 CE
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