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The history of telecommunication began with the use of smoke signals and drums in Africa, Asia, and the Americas. In the 1790s, the first fixed semaphore systems emerged in Europe . However, it was not until the 1830s that electrical telecommunication systems started to appear.
His favorite individual clue is "It might turn into a different story" (whose solution is SPIRAL STAIRCASE). [19] In addition to work as a crossword editor, Shortz is a skilled table tennis player. He has co-owned the Westchester Table Tennis Center in Pleasantville, New York since 2009, and has been playing table tennis daily for the past 11 ...
An American-style 15×15 crossword grid layout. A crossword (or crossword puzzle) is a word game consisting of a grid of black and white squares, into which solvers enter words or phrases ("entries") crossing each other horizontally ("across") and vertically ("down") according to a set of clues. Each white square is typically filled with one ...
May 5, 1997 United States: AO-40: First satellite to use GPS for navigation and attitude determination in High Earth orbit [3] [4] November 16, 2000 Germany United States: Artemis: First demonstration of inter-satellite laser communication [5] November 21, 2001 (experiment) European Union: SuitSat: First use of a decommissioned spacesuit as a ...
Guglielmo Giovanni Maria Marconi [11] [12] was born in Palazzo Marescalchi in Bologna on 25 April 1874, the second son of Giuseppe Marconi (an Italian aristocratic landowner from Porretta Terme who lived in the countryside of Pontecchio) and his Irish wife Annie Jameson (daughter of Andrew Jameson of Daphne Castle in County Wexford, sister of Scottish naturalist James Sligo Jameson, and ...
Claude Shannon (1916–2016), founder of information theory and modern cryptography, invented Minivac 601, and co-invented the first wearable computer (with Edward O. Thorp) Ugo Cerletti (1877–1963), together with Lucio Bini (1908–1964), Italy – Electroconvulsive therapy; Leona Chalmers (c. 1937), U.S. – modern menstrual cup
Telecommunications engineer, inventor Walter L. Shaw Sr. (December 20, 1916, in Vineland, New Jersey [ 1 ] – July 21, 1996 [ 2 ] ) was an American telecommunications engineer and inventor who clashed with his employer (variously identified as AT&T , [ 3 ] Bell [ 1 ] [ 4 ] and Southern Bell [ 2 ] ) over ownership of his inventions.
Robert Haig Weitbrecht (1920-1983) was an engineer at SRI International and later the spin-off company Weitbrecht Communications who invented a type of a modem (a form of acoustic coupler). Early life and education