Julius Robert von Mayer
1814 CE–1878 CE · Heilbronn
Julius Robert von Mayer (25 November 1814 – 20 March 1878) was a German physician, chemist, and physicist and one of the founders of thermodynamics. He is best known for enunciating in 1841 one of the original statements of the conservation of energy or what is now known as one of the first versions of the first law of thermodynamics, namely that "energy can be neither created nor destroyed". In 1842, Mayer described the vital chemical process now referred to as oxidation as the primary source of energy for any living creature. He also proposed that plants convert light into chemical energy. His achievements were overlooked and priority for the discovery in 1842 of the mechanical equivalent of heat was attributed to James Joule in the following year.
Adapted from Wikipedia, licensed under CC BY-SA 4.0.
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- Charles Lyell· 1797 CE–1875 CE
- Friedrich Wöhler· 1800 CE–1882 CE
- Justus von Liebig· 1803 CE–1873 CE
- Richard Owen· 1804 CE–1892 CE
- William Rowan Hamilton· 1805 CE–1865 CE
- Augustus De Morgan· 1806 CE–1871 CE
- Louis Agassiz· 1807 CE–1873 CE
- Charles Darwin· 1809 CE–1882 CE
- Urbain Le Verrier· 1811 CE–1877 CE
- Robert Bunsen· 1811 CE–1899 CE
- Claude Bernard· 1813 CE–1878 CE
- James Joseph Sylvester· 1814 CE–1897 CE
- George Boole· 1815 CE–1864 CE
- Karl Weierstrass· 1815 CE–1897 CE
- Ignaz Semmelweis· 1818 CE–1865 CE
- James Prescott Joule· 1818 CE–1889 CE
- Léon Foucault· 1819 CE–1868 CE
- Pafnuty Chebyshev· 1821 CE–1894 CE
- Hermann von Helmholtz· 1821 CE–1894 CE
- Gregor Mendel· 1822 CE–1884 CE
- Rudolf Clausius· 1822 CE–1888 CE
- Leopold Kronecker· 1823 CE–1891 CE
- Gustav Kirchhoff· 1824 CE–1887 CE
- James Clerk Maxwell· 1831 CE–1879 CE
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- Xianfeng Emperor· 1831 CE–1861 CE
- Giuseppe Garibaldi· 1807 CE–1882 CE
- Mindon Min· 1808 CE–1878 CE
- Tewodros II· 1818 CE–1868 CE
- Victor Emmanuel II· 1820 CE–1878 CE
- Wilhelm I· 1797 CE–1888 CE
- Benjamin Disraeli· 1804 CE–1881 CE
- Alexander II· 1818 CE–1881 CE
- Abdulmecid I· 1823 CE–1861 CE
- Andrew Johnson· 1808 CE–1875 CE
- Washakie· 1804 CE–1900 CE
- Cochise (Cheis)· 1805 CE–1874 CE
- Benito Juárez· 1806 CE–1872 CE
- Abdulaziz· 1830 CE–1876 CE
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