Example image of eyePlorer eyePlorer map for '1839 in science': Science Technology 1903 in science Antarctica Babbitt metal Carl Gustaf Mosander Cell (biology) Charles Goodyear Chemist Christian Gottfried Ehrenberg Daguerreotype February 11 French Academy of Sciences Isaac Babbitt James Clark Ross January 9 Josiah Willard Gibbs Kirkpatrick Macmillan Lanthanum Photography Roderick Murchison Silurian Theodor Schwann Theoretical physics William Robert Grove Wollaston Medal 1888 in science April 12 List of explorers Nikolai Przhevalsky 1751 in science April 8 Physicist Pierre Prévost 1791 in science Allan Cunningham (botanist) Botany June 27 1754 in science 1769 in science 1773 in science August 28 Friedrich Mohs Geologist Germany Invention Mineralogy November 15 September 29 Technician