Diborane (boron hydride), mixed with hydrogen, burning rapidly with a pop, when a heated steel wire (not visible), but below red heat, was inserted into it, forming chiefly boron trioxide and steam. The gas is formed by warming sodium borohydride with concentrated sulfuric acid (the drain cleaner variety), and is very toxic.
January 11, 1787
William Herschel discovers Oberon, the outermost major moon of the planet Uranus. Oberon is named after the mythical king of the fairies who appears as a character in Shakespeare’s A Midsummer Night’s Dream.
Marie Curie, ca. 1898
(Source: Flickr / heypaul)