Editing 1839 in science (section)

==Births==
* January 26 &ndash; [[Rachel Lloyd (chemist)|Rachel Lloyd]] (d. [[1900]]), American chemist.
* January 27 – [[Marie-Adolphe Carnot]] (died [[1920 in science|1920]]), [[French people|French]] [[chemist]] and mining engineer.
* February 11
** [[Josiah Willard Gibbs]] (died [[1903 in science|1903]]), [[United States|American]] [[theoretical physicist]] and chemist.
** [[Almon Strowger]] (died [[1902 in science|1902]]), American [[telecommunications engineer]].
* February 15 – [[Hieronymus Georg Zeuthen]] (died 1920), [[Danes|Danish]] [[mathematician]].
* March 8 – [[Josephine Cochrane]] (died [[1913 in science|1913]]), American inventor of the first commercially successful dishwasher.
* March 16 – [[Sully Prudhomme]] (died [[1907 in science|1907]]), French engineer and poet, recipient of the [[Nobel Prize in Literature]].
* April 4 – [[James Blyth (engineer)|James Blyth]] (died [[1906 in science|1906]]), [[Scottish people|Scottish]] electrical engineer.
* April 12 – [[Nikolai Przhevalsky]] (died [[1888 in science|1888]]), [[Russia]]n-born [[Polish people|Polish]] [[List of explorers|explorer]].
* May 8 – [[George Miller Beard]] (died [[1883 in science|1883]]), American [[neurologist]].
* July 17 – [[Ephraim Shay]] (died [[1916 in science|1916]]), American steam locomotive engineer.
* September 10 – [[Charles Sanders Peirce]] (died [[1914 in science|1914]]), American philosopher, logician, mathematician and scientist.