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1855–1905. Inventor. Folding "cabinet-bed", forerunner of the Murphy bed; first African-American woman to receive a patent in the United States. [ 81][ 82][ 83] Grant, George F. 1846–1910. Dentist, professor. The first African-American professor at Harvard, Boston dentist, and inventor of a wooden golf tee .
3, inc. Elizabeth Jennings. Thomas L. Jennings (c. 1791 – February 12, 1859) was an African-American inventor, tradesman, entrepreneur, and abolitionist in New York City, New York. He has the distinction of being the first African-American patent -holder in history; he was granted the patent in 1821 for his novel method of dry cleaning. [ 1]
Joseph Richard Winters (August 29, 1824 [1] – November 29, 1916) was an African-American abolitionist and inventor who, on May 7, 1878, received U.S. Patent number 203,517 for a wagon-mounted fire escape ladder. On April 8, 1879, he received U.S. Patent number 214,224 for an improvement on the ladder.
Yet Cosm Los Angeles definitely has entertainment on its mind. It will no doubt recall Las Vegas' all-encompassing arena Sphere. Yet Cosm is cozier. The centerpiece of the venue is its dome, with ...
When sourcing the best outdoor Christmas lights for 2023, we included solar-powered, battery-operated, and plug-in options in every style. Shop our picks now!
The National Inventors Hall of Fame is an American not-for-profit organization, founded in 1973, which recognizes individual engineers and inventors who hold a U.S. patent of significant technology. As of 2020, 603 inventors have been inducted, mostly constituting historic persons from the past three centuries, but including about 100 living ...
Gersh Budker (1918–1977), Russia – electron cooling, co-inventor of collider. Edward Bull (1759–1798), England – Bull engine (a modified steam engine) Robert Bunsen (1811–1899), Germany – Bunsen burner. Henry Burden (1791–1871), Scotland and U.S. – Horseshoe machine, first usable iron railroad spike.
Red: hot. Blue: cold. Green: light. Non-green arrows: water flow. Solid colors: metal. Light colors: fused quartz. Refs: , , Polariscope and discovery of Rotary polarization by François Arago. He invented the first polarization filter in 1812. [77] Arithmometer by Thomas de Colmar in 1820. [78] Dynamometer by Gaspard de Prony (de Prony brake ...
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