نام فایل : الكسنادر هامبل انگليسي
فرمت : .doc
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Alexander Graham Bell
(3 March 1847 – 2 August 1922) was an eminent
scientist
,
inventor
and
innovator
who is credited with inventing the first practical
telephone
.
Bells father, grandfather, and brother had all been associated with work on
elocution
and
speech
, and both his mother and wife were deaf, profoundly influencing Bells lifes work.
[1]
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.
[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.
[3]
...
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