Call Girls Hsr Layout Just Call 7001305949 Top Class Call Girl Service Available
Tel313 tipaagb
1.
2. Invention: The Telephone
• Throughout his life, Bell had been
interested in the education of deaf
people.
• This interest lead him to invent the
microphone and, in 1876, his "electrical
speech machine," which we now call a
telephone
• By 1878, Bell had set up the first
telephone exchange in New
Haven, Connecticut. By 1884, long
distance connections were made
between Boston, Massachusetts and
New York City.
3. • Alexander Graham Bell was born on March 3, 1847, in Edinburgh, Scotland.
• Teacher of the deaf.
• He only attended school for five years.
• He recovered from tuberculosis.
• He was a professor at Boston University.
• He made an iron breathing lung.
• He died in Canada at the age of 75.
• He became a U.S. citizen.
• President of nation geographic society.
• Invented the telephone at age 29.
