This Day in Geek History: September 17
1683
Dutch scientist Antonie van Leeuwenhoek sends a report of his discovery of microscopic living animalcules (live bacteria) to the Royal Society. He describes observations made on the plaque between his own teeth, “a little white matter, which is as thick as if ’twere batter.” Leeuwenhoek reports, “I then most always saw, with great wonder, that in the said matter there were many very little living animalcules, very prettily a-moving. The biggest sort… had a very strong and swift motion, and shot through the water (or spittle) like a pike does through the water. The second sort… oft-times spun round like a top… and these were far more in number.”
1789
William Herschel discovers Mimas, a moon of Saturn.
1822
At the French Academie Royale des Inscriptions, Jean-François Champollion reads a paper, Lettre a M. Dacier, describing his solution to the mystery of the triple inscriptions of the Rosetta Stone which was unearthed by Napoleon’s army near the Rosetta branch of the Nile on July of 1799. Read more about the Rosetta Stone. Read the English translation of the Rosetta Stone.
1844
The first US patent is issued for a printing press with different colors of ink applied in one impression. (US No. 3,744) The inventor, Thomas F. Adams of Philadelphia, Pennsylvania, calls the process “polychrome printing.” The process uses several ink fountains feeding different color rollers operated in parallel on the same axle, to produce stripes of different colors of ink.
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