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111History of the transistor — Invention of the transistor= The first patent [patent|US|1745175|Julius Edgar Lilienfeld: Method and apparatus for controlling electric current first filed in Canada on 22.10.1925, describing a device similar to a MESFET] for the field effect… …
112Flip-flop (electronics) — An SR latch, constructed from a pair of cross coupled NOR gates. Red and black mean logical 1 and 0 , respectively. In electronics, a flip flop or latch is a circuit that has two stable states and can be used to store state information. The… …
113Pearl Harbor advance-knowledge debate — The Pearl Harbor advance knowledge debate is a dispute over what, if any, advance knowledge American officials had of Japan s December 7, 1941 attack on Pearl Harbor.Ever since the Japanese attack there has been debate as to how and why the… …
114Sarah Marinda Bates Pratt — Full name Sarah Marinda Bates Born February 5, 1817(1817 02 05) Place of birth …
115Yak — For the Nigerian footballer, see Yakubu Aiyegbeni. For other uses, see Yak (disambiguation). Yak A domestic yak in Nepal Conservation status …
116Glossary of ballet — Ballet is a formalized type of dance; ballet dance is usually performed on stage as part of a ballet dance work which includes mime, acting, and is set to music. Dancers can perform either en pointe or demi pointe; in ballet class, the dancers… …
117Street Scene (opera) — Street Scene is a Broadway musical or, more precisely, an American opera by Kurt Weill (music), Langston Hughes (lyrics), and Elmer Rice (book), based on the Pulitzer Prize winning play of the same name by Rice. For his work on Street Scene ,… …
118North Channel naval duel — The North Channel naval duel was the fight between the United States Continental Navy sloop of war Ranger (Captain John Paul Jones) and the British Royal Navy sloop of war Drake (Captain George Burdon) on the evening of 24 April 1778. It was the… …
119North Channel Naval Duel — Part of the American War of Independence Date 24 April 1778 Location Nor …
120HIV — Classification and external resources Diagram of HIV …
