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Alexander Graham Bell

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Title: Alexander Graham Bell Author: Kevin Roberts Last modified by: rjmackin Created Date: 10/28/2000 6:22:17 PM Document presentation format: On-screen Show – PowerPoint PPT presentation

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Title: Alexander Graham Bell


1
Alexander Graham Bell
  • A Great Inventor

2
Introduction
  • Many forces helped shaped the genius of Alexander
    Graham Bell. As the son and grandson of speech
    experts, he had unique knowledge of the
    possibilities of sound. As the son of a deaf
    mother, he had a true appreciation of the effort
    required to live in a hearing world. These two
    factors helped set Bell on the road to the
    telephone.

3
The Early Years
  • On March 3, 1847 Alexander Bell was born in
    Edinburgh, Scotland.
  • May 21, 1868 Bell begins teaching speech to the
    deaf at Susanna Hulls school for deaf children
    in London.

4
The 1870s
  • 1870 Bell and his family emigrate to Canada and
    settle in Brantford, Ontario.
  • 1872 Bell opens his School Vocal Physiology and
    begins experimenting with the multiple telegraph.

5
Bells Family Life
  • On July 11, 1877 Bell and Mabel Hubbard are
    married.
  • On May 8, 1878 daughter Elsie May Bell is born.
  • On February 15, 1880 daughter Marion (Daisy) Bell
    is born.
  • In 1881 Bells son Edward is born, but dies in
    infancy. In 1883 Bells son Robert also dies in
    infancy.

6
Bells Inventions
  • After inventing the telephone, Bell continued his
    experiments in communication, which culminated in
    the invention of the photophone-transmission of
    sound on a beam of light-a precursor of todays
    optical fiber systems. He also worked in medical
    research and invented techniques for teaching
    speech to the deaf. In 1888 Bell founded the
    National Geographic Society.

7
The Early Telephone
  • 1874 Bell first conceives the idea for the
    telephone. Bell meets Thomas Watson, a young
    electrician who would become his assistant.

8
Bells Telephone
  • On March 6, 1876 United States Patent No. 174,465
    is officially issued for Bells telephone.
  • On March 10, intelligible speech is heard for the
    first time when Bell calls to Watson, Mr.
    Watson--Come here--I want to see you.

9
Bells Silver Dart
  • Glenn Curtiss, Thomas Selfridge, Casey Baldwin,
    J.A.D. McCurdy, and Bell form the Aerial
    Experiment Association (AEA).
  • The AEAS Silver Dart makes the first flight of a
    heavier-than-air machine in Canada.

10
The Later Years
  • Bell spent the last decade of his life improving
    hydrofoil designs, and in 1919 he and Casey
    Baldwin built a hydrofoil that set a world
    water-speed record that was not broken until 1963.

11
Beinn Bhreagh
  • In the summer of 1886 Bell begins buying land in
    Cape Breton, Nova Scotia.
  • On August 2, 1922 Bell dies and is buried here.On
    January 3, 1923 Mabel dies and is buried beside
    him.

12
Alexander Graham Bell Museum
  • Provides a center for the commemoration and
    interpretation of Bell and his associates.
  • Functions as a center for the study of Bells
    scientific and humanitarian work.
  • A variety of services and resources are available
    to the public.

13
For More Information
  • Alexander Graham Bell
  • National Historic Site
  • P.O. Box 159
  • Baddeck, Nova Scotia
  • B0E 1B0

14
References
  • http//memory.loc.gov/ammem/bellhtml/bellhome.html
  • http//www.fitzgeraldstudio.com/html/bell/theman.h
    tml
  • http//www.invent.org/book/book-text/7.html
  • http//w3.uccb.ns.ca/parks/agb_e.html
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