Alexander Graham Bell
Alexander Graham Bell is most famous for inventing the telephone. He developed an early interest in the science of sound as his father and elder brothers all helped the deaf and dumb to communicate.
He too began experimenting with sound. After a lot of his experiments and his effort, he discovered how sound signals could transfer from one place to another through the wire. Later, while further developing the telegraph, along with his assistant Thomas Watson, he invented the telephone.
The first word spoken over the telephone was by Bell on March 10, 1876. He said, "Mr. Watson, come here, I want to see you".
Overall he developed many invention such as metal decetor, an audiometer and a hydrofoil among others.
He developed telephone which was the need of modern world. Now a day's we use smartphone that all are modern form of telephone.
Thankyou....
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