Friday, September 7, 2012

Alexander Grahambell inventor of telephone

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Alexander Graham Bell

Portrait of Alexander Graham Bell
ca. 1914–1919
Born March 3, 1847
Edinburgh, Scotland, UK
Died August 2, 1922 (aged 75)
Beinn Bhreagh, Nova Scotia, Canada
Cause of death Complications from diabetes
Residence U.K., U.S., Canada
Citizenship Scotland, USA, Canada
Alma mater University of Edinburgh
University College London
Occupation Inventor, Scientist, Engineer, Professor (Boston University), Teacher of the deaf
Known for Inventing the Telephone
Spouse Mabel Hubbard
(married 1877–1922)
Children (4) Two sons who died in infancy and two daughters
Parents Alexander Melville Bell
Eliza Grace Symonds Bell
Relatives Gardiner Greene Hubbard (father-in-law)
Gilbert Hovey Grosvenor (son-in-law)
Melville Bell Grosvenor (grandson)
Mabel Harlakenden Grosvenor (granddaughter)
Gilbert Melville Grosvenor (great-grandson)
Chichester Bell (cousin)
Signature
Alexander Graham Bell (March 3, 1847 – August 2, 1922) was an eminent scientist, inventor, engineer and innovator who is credited with inventing the first practical telephone.[N 1]
Bell's father, grandfather, and brother had all been associated with work on elocution and speech, and both his mother and wife were deaf, profoundly influencing Bell's life's work.[3] His research on hearing and speech further led him to experiment with hearing devices which eventually culminated in Bell being awarded the first US patent for the telephone in 1876.[N 2] In retrospect, Bell considered his most famous invention an intrusion on his real work as a scientist and refused to have a telephone in his study.[5][N 3]
Many other inventions marked Bell's later life, including groundbreaking work in optical telecommunications, hydrofoils and aeronautics. In 1888, Bell became one of the founding members of the National Geographic Society.[7] He has been described as one of the most influential figures in human history.[8]