alexander graham bell powerpoint slide

ALEXANDER GRAHAM BELL BY LAM LE

DATE OF BIRTH , PLACE

Born: March 3, 1847, Edinburgh, United Kingdom

SCIENTIST BACKGROUND

He was eminent scientist , inventor , engineer.

He went to Royal high school then attended to the

University of Edinburgh.

His spouse is Mabel Gardiner Hubbard and

children.

He created telephone.

ACHIEVEMENTS/DISCOVERY/INVENTIONS

Graham Bell achieves the invention of telephone,

iron lung, and machine that transmitted speech

His discovery and inventions of telephone.

2 EVENT FROM HISTORICAL EPOCH

Graphaphone

Telephone

Twisted pair

INFLUENCE OF SOCIETY

Education for deaf children , he know the sign

language used in United States.

Bell who was willing to use sign language with the

deaf children

AWARDS OR ADDITIONAL INTERESTING FACTS

The master telephone patent

Honorary Doctor of Laws degree

Elliott Cresson medal

lEEE Edison medal

John Fritz metal

Hughes metal

QUOTE BY SCIENTIST

“Before anything else, preparation is the key to

success.”

REFLECTIONWhen one door closes another door open ; but we so often look so

long and so regretfully upon the closed door , that we do not see the

ones which open for us.

CITATIONS

http://www.brainyquote.com/quotes/authors/a/alex

ander_graham_bell.html