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Alexander Graham Bell is a hero because he invented the telephone and the first hearing aids. Alexander always wanted to invent things and help deaf people. Bell's mother was deaf, and he admired that, and she was a hero to him.

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He came to the U.S as a teacher of the deaf, and conceived the idea of "electronic speech" while visiting his hearing-impaired mother in Canada. When he was eleven, Bell invented a machine that could clean wheat.

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July 1874 at his parent's home, Melville House, near Brantford.

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the first phone was made with Materials range from glass, ceramics, paper, metals, rubber and plastics. The primary components on the circuit board are made from silicon. The outer housing of the phone is typically made of a strong, high-impact resistant polymer.

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was a Scottish-born scientist, inventor, engineer, and innovator who is credited with inventing and patenting the first practical telephone. He also founded the American Telephone and Telegraph Company (AT&T) in 1885.