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1956 Nobel for physics awarded to William Shockley, Walter H. Brattain and John Bardeen
2012 Scientists detect evidence of light from the universe’s first stars, predicted to have formed 500 million years after the big bang
1846 Benjamin Palmer patents artificial leg
1873 Dentist John Beers of San Franciso patents the gold crown
1879 African American inventor Thomas Elkins patents refrigerating apparatus
1879 James Ritty patents first cash register, to combat stealing by bartenders in his saloon in Dayton, Ohio
1939 First air conditioned automobile (Packard) exhibited, Chicago, Illinois
1963 First use of the instant replay machine invented by CBS in US Army vs Navy football game
1675 German mathematician Gottfried Wilhelm Leibniz demonstrates integral calculus for the first time to find the area under the graph of y = f(x) function
1851 Alvan Clark patents telescope
1930 Patent number US1781541 is awarded to Albert Einstein and Leó Szilárd for their invention of the Einstein refrigerator
1666 Samuel Pepys reports on 1st blood transfusion (between dogs)
1856 American Gail Borden is issued a patent for technology related to his invention of condensed milk
1908 Albert Einstein presents his quantum theory of light
1904 King C. Gillette patents the Gillette razor blade
1866 Pierre Lallement patents rotary crank bicycle
1888 Willard Bundy patents timecard clock
1979 US’s 1st artificial blood transfusion occurs at University of Minnesota Hospital