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1839 1st photo of the Moon (French photographer Louis Daguerre)
1842 1st US wire suspension bridge for general traffic opens in Penn
1936 1st electron tube to enable night vision described, St Louis, Missouri
1610 Simon Marius. a German astronomer, independently discovers the first three moons of Jupiter one day after Galileo
1816 Sophie Germain is the first woman to win a prize from the Paris Academy of Sciences for her paper on elasticity
1884 Chrome tanning process for leather patented by Augustus Schultz
1889 Dr Herman Hollerith receives 1st US patent for a mechanical tabulating machine
1935 Spectrophotometer patented, AC Hardy
1787 Titania & Oberon, moons of Uranus, discovered by William Herschel
1813 1st pineapples planted in Hawaii (or 1/21)
1838 First public demonstration of telegraph message sent using dots & dashes at Speedwell Ironworks, Morristown, New Jersey by Samuel Morse and Alfred Vail
1861 Steam elevator patented by Elisha Otis
1863 1st US newspaper printed on wood-pulp paper, Boston Morning Journal
1907 3-element vacuum tube patented by Dr Lee De Forest
1871 1st cable car patented, by Andrew Smith Hallidie in the US (begins service in 1873)
1905 Punchboards patented by Charles Brewer & C G Scannell, Chicago
1928 1st fully automatic photographic film developing machine patented
1896 1st demonstration of an X-ray machine in US (NYC)
1977 Scientists identify a previously unknown bacterium as the cause of the mysterious Legionnaires’ disease.
1989 Astronomers discover pulsar in remnants of Supernova 1987A (LMC)
1849 US Patent granted for an envelope-making machine to Jesse K. Park and Cornelius S. Watson
1909 1st radio rescue at sea
1799 1st US patent for a seeding machine, Eliakim Spooner, Vermont
1870 Soda fountain patented by Gustavus Dows
1939 1st nuclear fission experiment (splitting of a uranium atom) in the US, in basement of Pupin Hall, Columbia University by a team including Enrico Fermi
1945 Grand Rapids, Michigan, becomes 1st US city to fluoridate its water