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Alexander Graham Bell
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Alexander Graham Bell (March 3, 1847 – August 2, 1922) was an eminent Scottish-born scientist, inventor, engineer and innovator who is credited with inventing the first practical telephone.
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.[7] His research on hearing and speech further led him to experiment with hearing devices which eventually culminated in Bell being awarded the first U.S. patent for the telephone in 1876.[N 4] Bell considered his most famous invention an intrusion on his real work as a scientist and refused to have a telephone in his study.
Many other inventions marked Bell's later life, including groundbreaking work in optical telecommunications, hydrofoils andaeronautics. In 1888, Bell became one of the founding members of the National Geographic Society.
Major Contributions:
Alexander Graham Bell has made some major
contributions to society, to this date. While the telephone was not the only
great invention that he had, some of his later inventions were more important
than the telephone. One of the next major inventions that he had was the metal
detector. The metal detector is a device, which uses electromagnetic induction
to detect metal. The reason why Alex would want to create such a device was so
he could find a bullet that had shot President James Garfield. Since the bullet
that shot the president had lead in it the metal detector should of been able
to find it, but the only flaw that the metal detector had was its ability to
since how close the bullet was to the detector. The result in to trying to find
the bullet was impossible because the detector was going off constantly. The
main reason why the bullet was not found was that the bed that the president
was laying on was made of different types of metals. So in his efforts of
trying to find the bullet, he was only getting closer or father away from the
bed. "The president's surgeons, who were skeptical of the device, ignored
Bell's requests to move the president to a bed not fitted with metal springs.
Alternately, although Bell had detected a slight sound on his first test, the
bullet may have lodged too deeply to be detected by the crude apparatus."
The most notable innovation that Alex has
changed the world with is, the telephone. The phone has revolutionized the way
that we conduct our daily tasks.
The way that the phone was invented was that the phone is
wire-based electrical system, "and Alexander Graham Bell's success with
the phone came as a direct
result of his attempts to improve" [14]his telegraph system. When Bell
began to mess around with some of the electrical signals, try putting different
tools together, he learned what all was going on when a telegraph. Although it
was the sucess rate of the
system was remarkably high , the
telegraph, with its dot-and-dash Morse code, was just limited to receiving and
sending one letter at a time.
Bell's extensive knowledge of the nature of music and his knowledge of music
enabled him to infer the possibility
of transmitting multiple messages to other people over a priciple wire, or cable, at the same time as others go
through the wire.
Although the notion of a multiple telegraph had been in existence for some
time, Bell offered his own musical or harmonic manner as a workable practical
solution. His "harmonic telegraph" was based on the assumption that several messages could be sent at the precise same time all along a principle cable if the notes or signals differed in tone. In 1875, Bell
developed an acoustic telegraph and drew up a patent application for it. Since
he had agreed to share large amounts of profits with his two investors Gardiner
Hubbard and Thomas Sanders, Bell requested that an associate attempt to licence
it in Britain, instructing his lawyers to apply for a license in the United
States only after they received word from Britain.
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