my ppt is alexendra grahm

1. Alexander Graham Bell
A Great Inventor

2. Government Engineering College,
Gujarat Technical University
Name: GAMIT NARESH K.
En. No. :100210111118
Sub : Contributor Personality Development

3. 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.

4. 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
Hull’s school for deaf
children in London.

5. The 1870’s
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.

6. Bell’s 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 Bell’s son Edward is
born, but dies in infancy. In
1883 Bell’s son Robert also dies
in infancy.

7. Bell’s 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 today’s 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.

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

9. Bell’s Telephone
On March 6, 1876 United
States Patent No. 174,465
is officially issued for
Bell’s 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.”

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

11. 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.

12. 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.

13. 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 Bell’s
scientific and
humanitarian work.
A variety of services and
resources are available to
the public.

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

15. References
http://memory.loc.gov/ammem/bellhtml/bel
lhome.html
http://www.fitzgeraldstudio.com/html/bell/t
heman.html
http://www.invent.org/book/book-text/
7.html
http://w3.uccb.ns.ca/parks/agb_e.html