The story

Alexander Graham Bell

Alexander Graham Bell

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Scottish Inventor (1847-1922). He created the telephone, an invention that changed the history of mankind.

The inventor of the telephone, Alexander Graham Bell, was born in Edinburgh, Scotland. His father, Alexander Melville Bell (1819-1905), also an inventor, had created a deaf education system. In 1873 Bell became professor of vocal physiology at Boston University, where he began experimenting with acoustics and developed some concepts for electrically speaking speech. This idea eventually led to the invention of the telephone. The first fully understandable telephone conversation came when Bell in one room called his assistant, Thomas Watson, in another: "Come here, Watson, I need you." Watson heard the call through a receiver connected to the transmitter that Bell had designed.

Although Elisha Gray (1835-1901) built the first receiver with an electromagnetic diaphragm in 1874, he failed to design a functional transmitter before Bell. Bell worked exhaustively, experimenting with various kinds of mechanisms, while Gray became discouraged and stopped midway. Incredibly, they both filed their designs at the New York Patent Office on the same day: February 14, 1876. Bell beat Gray for only two hours. Gray later challenged Bell's patent, but the US Supreme Court ruled in favor of Bell.

In 1877 Bell founded the Bell Telephone Company, which later became American Telephone & Telegraph (AT&T), the world's largest telephone company. Telefonica Bell opened the first transcontinental line from New York to San Francisco in 1915. In addition to the invention of the telephone, which gave Bell a lot of money and fame, he also invented the photophone and audiometer, as well as recordings on plates or wax coated cylinders. Graham Bell retired but remained active as coordinator of the Smithsonian Institute in Washington.