why was the invention of the telephone important
What does star 67 do on the telephone? Star (*) 67 can be dialed on a telephone prior to inputting the desired contact number; this prevents the dialer's number from being seen on the Caller ID by the individual on the receiving end of the phone call. This feature allows the caller to remain anonymous. Full Answer
Why wouldn't I use Vonage as a business phone service? There are a number of reasons not to use a service such as Vonage for a business telephone service, but the main one is lack of sound quality. Vonage and other similar services rely on voice-over-IP technology, which can effect the quality of calls. Full Answer How can you tell if your phone line is tapped? The most common signs that a phone line is being tapped are strange beeps and clicks on the line during a normal telephone conversation. Additional signs include phones that light up when not in use and unusually warm batteries in phones that are not being charged or used in any way. Full Answer What is Bluff My Call? Bluff My Call is a service that changes a telephone caller's identification number.
The service also allows a caller to contact international destinations, disguise his voice, record the phone conversation or directly leave a message to the called party's voicemail. Full Answer Bell owes his immortality to his having been the first to design and patent a practical device for transmitting the human voice by means of an electric current. But Bell always described himself simply as a Бteacher of the deaf,Б and his contributions in that field were of the first order. Did You Know? Though he is credited with its invention, Alexander Graham Bell refused to have a telephone in his study, fearing it would distract him from his scientific work. Bell, who was born in Edinburgh, Scotland, was educated there and at the University of London. He also studied under his grandfather, Alexander Bell, a noted speech teacher. He taught elocution, assisted his father, also a speech teacher and noted phonetician, and taught at a school for the deaf in England, using his fatherБs methods. In 1870, Bell immigrated with his parents to Canada. Two years later he established a school for the deaf in Boston, and the following year became a professor in speech and vocal physiology at Boston University.
While teaching he experimented with a means of transmitting several telegraph messages simultaneously over a single wire and also with various devices to help the deaf learn to speak, including a means of graphically recording sound waves. In 1874 the essential idea of the telephone formed in his mind. As he later explained it, БIf I could make a current of electricity vary in intensity precisely as the air varies in density during the production of sound, I should be able to transmit speech telegraphically. Б Two years later he applied for a patent, which was granted on March 7, 1876. On March 10, the first coherent complete sentenceБthe famous БMr. Watson, come here; I want youББwas transmitted in his laboratory. In later years Bell experimented with a means to detect metal in wounds and with a vacuum-jacket respirator that led to the development of the iron lung. He helped bring Thomas A. EdisonБs phonograph to commercial practicality and experimented with hydrofoil boats and with airplanes as early as the 1890s.
With the wealth derived from the telephone, Bell was able to assist the careers of other scientists. He also founded and helped finance the journal Science, today the premier American scientific journal, and the National Geographic Society. While constantly engaged in scientific experiments, Bell crusaded tirelessly on behalf of the deaf, encouraging their integration into society with the help of lip-reading and other techniques. In 1890 he founded the Alexander Graham Bell Association for the Deaf. He died in 1922 at his summer home on Cape Breton Island, Nova Scotia. People throughout North America were urged to refrain from making phone calls during his burial so that telephones would remain silent as a tribute. Robert V. Bruce, Bell: Alexander Graham Bell and the Conquest of Solitude (1973). The ReaderБs Companion to American History. Eric Foner and John A. Garraty, Editors. Copyright б 1991 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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