Portal:History of science/Selected anniversaries/July 23

July 23:

• 1773 - Death of George Edwards, English naturalist (b. 1693)

• 1775 - Birth of Étienne-Louis Malus, French physicist and mathematician (d. 1812)

• 1886 - Birth of Walter H. Schottky, German physicist (d. 1976)

• 1906 - Birth of Vladimir Prelog, Croatian chemist, Nobel Prize laureate (d. 1998)

• 1916 - Death of Sir William Ramsay, Scottish chemist, Nobel Prize laureate (b. 1852)

• 1962 - Telstar relays the first live trans-Atlantic television signal

• 1968 - Death of Henry Hallett Dale, English scientist, Nobel Prize laureate (b. 1875)