Portal:History of science/Selected anniversaries/January 31

January 31:

 * 1632 - Death of Joost Bürgi, Swiss clockmaker and mathematician (b. 1552)


 * 1747 - The first venereal diseases clinic opens at London Lock Hospital


 * 1862 - Alvan Graham Clark observes the first white dwarf star, a companion of Sirius, through an eighteen inch telescope at Northwestern University


 * 1868 - Birth of Theodore William Richards, American chemist, Nobel laureate (d. 1928)


 * 1881 - Birth of Irving Langmuir, American chemist, Nobel laureate (d. 1957)


 * 1896 - Birth of Sofya Yanovskaya, Russian mathematician (d. 1966)


 * 1929 - Birth of Rudolf Mössbauer, German physicist, Nobel laureate


 * 1954 - Death of Edwin Howard Armstrong, American electrical engineer and inventor of the FM radio (b. 1890)