Events
1989 – The first ring of Neptune is discovered.
Births
1647 – Denis Papin, French physicist and inventor
1834 – Samuel Pierpont Langley, American astronomer
1913 – Bruno Pontecorvo, Italian physicist
Deaths
1828 – Franz Joseph Gall, Austrian neuroscientist
1918 – Korbinian Brodmann, German neurologist
1940 – Sir Oliver Joseph Lodge, English physicist, spiritualist, pioneer in wireless telegraphy
1950 – Kirk Bryan, American geologist
1967 – Gregory Goodwin Pincus, American endocrinologist