Alexander Graham Bell – Wikipedie
Alexander Graham Bell (3. března 1847 Edinburgh, Skotsko – 2. srpna 1922 Baddeck, Kanada) byl skotsko-americký vědec a vynálezce, který se zabýval tvorbou lidské řeči, výchovou hluchoněmých a elektromagnetickým přenosem řeči.
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Alexander Graham Bell | Biography, Education, Family, Telephone…
Alexander Graham Bell (1847–1922) was a British-American inventor, scientist, and teacher of the deaf whose foremost accomplishments were the invention of the telephone (1876) and refinement of the phonograph (1886).
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Who was Alexander Graham Bell?
Alexander Graham Bell was an inventor, scientist, and teacher who is best remembered for inventing the telephone. He was born on March 3, 1847, in Scotland, and he and his family moved to England in 1865 and Canada in 1870. A year later Bell moved to the United States, where he taught speech to deaf students and where he also invented and improved a number of electrical technologies. He became a U.S. citizen in 1882 while remaining a British subject; he later moved to Canada and lived there until his death on August 2, 1922.What did Alexander Graham Bell invent?
Although Alexander Graham Bell is best remembered as the inventor of the telephone, he invented other devices too. Bell developed several sonic technologies, including the photophone (1880) and the Graphophone (1886). He also developed medical technology. After the shooting of U.S. Pres. James A. Garfield in July 1881, Bell teamed up with professor Simon Newcomb of the U.S. Nautical Almanac Office to develop an electrical bullet probe. The pair demonstrated the probe in the autumn of 1881. Bell later shifted his attention to aerial technology. He founded the Aerial Experiment Association in 1907.How did Alexander Graham Bell’s telephone work?
The first telephone had two parts: a transmitter and a receiver. The transmitter comprised three parts—a drumlike device (a cylinder with a covered end), a needle, and a battery. The covered end of the drumlike device was attached to the needle. The needle was connected by wire to the battery, and the battery was connected by wire to a receiver. When Bell spoke into the open end of the drumlike device, his voice made the paper and needle vibrate. The vibrations were then converted into an electric current which traveled along the wire to the receiver.Alexander Graham Bell - Wikipidiya
Alexander Graham Bell sutiyuq runaqa (3 ñiqin pawqar waray killapi 1849 paqarisqa Edinburgh llaqtapi - 2 ñiqin chakra yapuy killapi 1922 watapi wañusqa Beinn Bhreagh llaqtapi, Kanadapi) huk Iskuthallp'a mama llaqtayuq rimaymanta…
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Alexander Graham Bell - Wikipedia, la enciclopedia libre
Alexander Graham Bell (Edimburgo, Escocia, Reino Unido, 3 de marzo de 1847-Beinn Bhreagh, Isla del Cabo Bretón, Canadá, 2 de agosto de 1922) fue un científico, inventor, logopeda escocés.
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Alexander Graham Bell National Historic Site
Meet the man who would forever transform the modern world. Feel Alexander Graham Bell’s remarkable legend come to life while touring full-scale replicas, touching his personal artefacts and taking part in exhilarating behind-the-scenes…
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Alexander Graham Bell
Před 10 měsíciDetail záznamu - Alexander Graham Bell - Detailní zobrazení záznamu - Jihočeská vědecká knihovna v Českých Budějovicích
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Alexander Graham Bell - Students | Britannica Kids | Homework…
(1847–1922). Scottish-born American scientist Alexander Graham Bell was one of the leading inventors in the late 19th and early 20th centuries. His work contributed to…
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Alexander Bell | Eduportál Techmania
Alexander Graham Bell se narodil v Edinburgu ve Skotsku. V jeho rodině bylo tradicí stát se vychovatelem a učitelem dětí s vadami sluchu a řeči.
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Alexander Graham Bell National Historic Site - Wikipedia
Alexander Graham Bell National Historic Site is a 10-hectare (25-acre) property in Baddeck, Cape Breton, Nova Scotia, Canada, overlooking the Bras d'Or Lakes. [1 ] The site is a unit of Parks Canada, the national park system, and includes…
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Alexander Graham Bell: Patent podal o pár hodin dřív, spory se táhly 100 let
1. 8. 2022Bez průmyslníka a vynálezce Alexandera Grahama Bella bychom dnes možná byli technologicky o několik desítek roků zpět. 2. srpna uplyne přesně sto let od smrti muže, který vdechl život třeba gramofonu.
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