The year '''1839 in Science and Technology''' included many events, some of which are listed here.
==Biology==
*Theodor_Schwann proposes that all living matter is made up of cells
==Chemistry==
*Carl_Mosander discovers Lanthanum
==Exploration==
*James_Clark_Ross sets off on the first scientific expedition to survey Antarctica
==Geology==
*Roderick_Murchison names the Silurian period
==Technology==
*January_9 - The French_Academy_of_Sciences announces the Daguerreotype Photography process
*Invention of the bicycle by Kirkpatrick_Macmillan
*Invention of the fuel cell by William Grove
*Development of vulcanized rubber by Charles_Goodyear
*Development of Babbitt_metal by Isaac_Babbitt
==Awards==
*Copley_Medal: Robert Brown
*Wollaston_Medal: Christian_Gottfried_Ehrenberg
==Births==
*February_11 - Josiah_Willard_Gibbs (d. 1903), Theoretical_physicist, Chemist.
*April_12 - Nikolai_Przhevalsky (d. 1888), explorer.
==Deaths==
*April_8 - Pierre_Prévost (b. 1751), Physicist.
*June_27 - Allan Cunningham (b. 1791), Botanist and explorer.
*August_28 - William Smith (b. 1769), Geologist
*September_29 - Friedrich_Mohs (b. 1773), German Mineralogist
*November_15 - William_Murdoch (b. 1754), Inventor and Technician.
Category:1839
Category:Years_in_science