Thursday, April 2, 2009

ALEXANDER GRAHAM BELL

ALEXANDER GRAHAM BELL

Alexander Graham Bell was born on March 3, 1847 and died on August 2, 1922. He was living in the Nova, Scotia Canada.

Alexander Graham Bell, Scottish-born American creator and teacher of the deaf, it is well known for his excellence the telephone to convey, or send, Vocal message using connections knowledge.

The young man:

Alexander Graham Bell was born on March 3, 1847, in Edinburgh, Scotland. His father, Alexander Melville Bell, was an authority on the workings of the voice and on elocution his grandfather, Alexander Bell, was an elocution professor. Bell’s mother, Eliza, was firm of inquiry but became a gifted pianist, and signal took an attention from particle. He would shortly call it his first creation.

One time studying at the university of Edinburgh and University College, London, England, Bell became his father’s associate. He taught the deaf to talk by adopting his father’s structure of evident speech. In London he studied Hermann Ludwig von Helmholtz’s (1821-1894) testing with correction forks and magnets to create complex sounds. In 1865 Bell made scientific studies of the quality of the mouth even as words.

Together of Bell’s brothers and died of tuberculosis. In 1870 his parents, in explore of a healthier climate, influenced him to move with them to Brantford, Ontario, Canada. In 1871 he went to Boston, Massachusetts, to educate at Sarah Fuller’s School for the Deaf, the first such school in the world. He also tutored Private students, include Helen Keller. As Professor of voice and speech at Boston University in 1873, he initiates conventions for teachers of the deaf. Throughout his life he constant to educate the deaf and the originator the American connected to sponsor the Teaching of Speech to the Deaf.

Inventing the telephone

From 1873 to 1876 Bell experimented with many inventions, as well as an exciting talking telegraph. The finances came from the father of two of his students. One of these men, Gardiner Hubbard, had a deaf daughter, Mabel, who shortly became Bell’s wife.

To assist deaf children, Bell Experimental in the summer of 1874 with a individual ear and friendly bones, magnets, smoked glass, and further things. He conceives the theory of the telephone: that an electric present can be made to modify its strength just as the pressure of air varies during sound production. That same year he made-up a telegraph that might propel several message at once over one wire, as well as a telephonic-telegraphic recipient.
Signal completes the thoughts; Thomas Watson twisted the tools. Working with turned reeds and magnets to make a getting gadget and sender work together, they transmitted a musical note on June 2, 1875. Bell’s telephone receives and transmitter was equivalent: a thin disk in front of an electromagnet.

On February 14, 1876, Bell’s brief filed for rights, or an article guaranteeing a individual the right to make and trade an device for a set number of years. The exact hour was not recorded, but on that same day Elisha Gray (1835-1901) filed his caveat for a telephone. The U.S Patent Office granted Bell the patent for the “electric speaking telephone” on March 7. it was the mainly valuable single rights still issued. It opened a new age in relations knowledge.

Bell constant his experiments to progress the telephone’s excellence. By mistake, Bell sent the first ruling, “Watson, approach here; I want you,” on March 10, 1876. The original public exhibition occurred at the American Academy of Arts and Sciences conference in Boston two months later. Bell’s present at the Philadelphia Centennial exhibition a month later gain more exposure. Emperor Dom Pedro of Brazil (1825-1891) prepared one hundred telephones for his country. The telephone, which had been given only eighteen words in the executive catalog of the show, rapidly became the “star” appeal.

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