Template:Selected anniversaries/September 12
From Gnomon Chronicles
1725: Astronomer Guillaume Le Gentil born. He will discover what are now known as the Messier objects M32, M36 and M38, as well as the nebulosity in M8, and he was the first to catalogue the dark nebula sometimes known as Le Gentil 3 (in the constellation Cygnus).
1900: Mathematician and academic Haskell Curry born. He will be known for his work in combinatory logic.
1902: Inventor Norman Lorimer Dean born. Dean will design the Dean drive, which he will promote as a reactionless drive.
1933: Leó Szilárd, waiting for a red light on Southampton Row in Bloomsbury, conceives the idea of the nuclear chain reaction.
