Bell Telephone (other)

	Bell Telephone (other) Bell Telephone refers to the Bell System of companies, led by the Bell Telephone Company and later by AT&T, which provided telephone services to much of the United States and Canada from 1877 to 1984. Bell Telephone may also refer to: * Bell Telephone Company, several telephone companies with similar names * Bell Telephone Building (other), various * ''The Bell Telephone Hour'', a long-running radio and television concert program * A hypothetical device named after physicist John Stewart Bell which allows signals to be sent faster than the speed of light using quantum mechanics. See also * Bell Telephone Memorial The Bell Memorial (also known as the Bell Monument or Telephone Monument) is a memorial designed by Walter Seymour Allward to commemorate the invention of the telephone by Alexander Graham Bell at the Bell Homestead National Historic Site, in Br ... {{Disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Bell Telephone The Bell System was a system of telecommunication companies, led by the Bell Telephone Company and later by the American Telephone and Telegraph Company (AT&T), that dominated the telephone services industry in North America for over one hundred years from its creation in 1877 until its antitrust breakup in 1983. The system of companies was often colloquially called Ma Bell (as in "Mother Bell"), as it held a vertical monopoly over telecommunication products and services in most areas of the United States and Canada. At the time of the breakup of the Bell System in the early 1980s, it had assets of $150 billion (equivalent to $ billion in ) and employed over one million people. Ever since the 1910s, American antitrust regulators had been observing and accusing the Bell System of abusing its monopoly power, and had brought legal action multiple times over the decades, until in 1974 the Antitrust Division of the U.S. Department of Justice brought a lawsuit against Bell ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Bell Telephone Company The Bell Telephone Company, a common law joint stock company, was organized in Boston, Massachusetts, on July 9, 1877, by Alexander Graham Bell's father-in-law Gardiner Greene Hubbard, who also helped organize a sister company – the New England Telephone and Telegraph Company. The Bell Telephone Company was started on the basis of holding "potentially valuable patents", principally Bell's master telephone patent #174465. Upon its inception, the Bell Telephone Company was organized with Hubbard as "trustee", although he was additionally its ''de facto'' president, since he also controlled his daughter's shares by power of attorney, and with Thomas Sanders, its principal financial backer, as treasurer. The two companies merged on February 17, 1879, to form two new entities, the National Bell Telephone Company of Boston, and the International Bell Telephone Company, soon after established by Hubbard and which became headquartered in Brussels, Belgium.Huurdeman, Anton A''The Worldw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Bell Telephone Building (other) Bell Telephone Building or variations such as Southwestern Bell Telephone Building and Old Bell Telephone Building, may refer to: ;in Canada Bell Telephone Building (Montreal) ;in the United States Old Bell Telephone Building (Osceola, Arkansas), listed on the National Register of Historic Places (NRHP) Southern Bell Telephone Company Building, Atlanta, Georgia, listed on the NRHP AT&T Midtown Center, Atlanta, Georgia, formerly known as Southern Bell Center Rocky Mountain Bell Telephone Company Building (Idaho Falls, Idaho), National Register of Historic Places listings in Bonneville County, Idaho, listed on the NRHP in Bonneville County, Idaho Oak Tower, Kansas City, Missouri, also known as ''Bell Telephone Building'' Bell Telephone Building (St. Louis, Missouri), listed on the NRHP Bell Telephone Laboratories (Manhattan), New York, New York, listed on the NRHP Southwestern Bell Telephone Building (Stroud, Oklahoma), National Register of Historic Places listings in Lincol ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
picture info	The Bell Telephone Hour ''The Bell Telephone Hour'' (also known as ''The Telephone Hour'') is a concert series that began April 29, 1940, on NBC Radio, and was heard on NBC until June 30, 1958. Sponsored by Bell Telephone as the name implies, it showcased the best in classical and Broadway music, reaching eight to nine million listeners each week. It continued on television from 1959 to 1968. Throughout the program's run on both radio and television, the studio orchestra on the program was conducted by Donald Voorhees. Synopsis After early shows featuring James Melton and Francia White as soloists, producer Wallace Magill restructured the format on April 27, 1942, into the "Great Artists Series" of concert and opera performers, beginning with Jascha Heifetz. The list of talents heard over the years includes Marian Anderson, Bing Crosby, Margaret Daum, Nelson Eddy, Benny Goodman, Josef Hofmann, José Iturbi, Fritz Kreisler, Gregor Piatigorsky, Oscar Levant, Ezio Pinza, Lily Pons, Gladys Swarthout, and H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	John Stewart Bell John Stewart Bell FRS (28 July 1928 – 1 October 1990) was a physicist from Northern Ireland and the originator of Bell's theorem, an important theorem in quantum physics regarding hidden-variable theories. In 2022, the Nobel Prize in Physics was awarded to Alain Aspect, John Clauser, and Anton Zeilinger for work on Bell inequalities and the experimental validation of Bell's theorem. Biography Early life and work Bell was born in Belfast, Northern Ireland. When he was 11 years old, he decided to be a scientist, and at 16 graduated from Belfast Technical High School. Bell then attended the Queen's University of Belfast, where, in 1948, he obtained a bachelor's degree in experimental physics and, a year later, a bachelor's degree in mathematical physics. He went on to complete a Ph.D. in physics at the University of Birmingham in 1956, specialising in nuclear physics and quantum field theory. In 1954, he married Mary Ross, also a physicist, whom he had met while working ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Quantum Mechanics Quantum mechanics is a fundamental theory in physics that provides a description of the physical properties of nature at the scale of atoms and subatomic particles. It is the foundation of all quantum physics including quantum chemistry, quantum field theory, quantum technology, and quantum information science. Classical physics, the collection of theories that existed before the advent of quantum mechanics, describes many aspects of nature at an ordinary (macroscopic) scale, but is not sufficient for describing them at small (atomic and subatomic) scales. Most theories in classical physics can be derived from quantum mechanics as an approximation valid at large (macroscopic) scale. Quantum mechanics differs from classical physics in that energy, momentum, angular momentum, and other quantities of a bound system are restricted to discrete values ( quantization); objects have characteristics of both particles and waves (wave–particle duality); and there are limits to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]