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1872 - Boltzmann equation; H-theorem First stellar spectrum photographs by H. Draper Abbe condenser lens for microscopes by E. Abbe Dewar vacuum flask ---- 15 March 1872 discovery of 118 Peitho 3 April 1872 discovery of 119 Althaea 10 April 1872 discovery of 120 Lachesis 12 May 1872 discovery of 121 Hermione 31 July 1872 discovery of 122 Gerda and 123 Brunhild 23 August 1872 discovery of 124 Alkeste 11 September 1872 discovery of 125 Liberatrix 5 November 1872 discovery of 126 Velleda and 127 Johanna 25 November 1872 discovery of 128 Nemesis ---- 31 May 1872, Birth of Charles Greeley Abbot in New Hampshire, USA 28 July 1872 Death of Frederik [Frederick, Friedrich] Kaiser in Leiden, the Netherlands 5 August 1872 Death of Charles-Eugène Delaunay at sea near Cherbourg 21 October 1872 Death of Jacques Babinet 1872 Birth of Michel Tswett (or Tsvet)
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