How many landline phones are in the world?
approximately 1.27 billion (1,270,000,000)
In the 1870s, Bell started to develop a machine to transmit what?
the human voice
When was the first phone call?
10th March 1876
What began in 1877?
The Bell Telephone Company
How many people have a mobile phone in the UK?
85% (eighty-five percent)
How many mobile phones are there in the world?
4 billion (4,000,000,000)
When did Bell die?
1922
Who was Alexander Graham Bell's assistant?
Thomas Watson
What were the first words spoken on a telephone?
"Watson. Come here. I want to see you."
When did Bell start designing machines to transmit sound?
1863
How long did Bell continue to invent?
All his life
What started Bell's interest in sound?
His mother became deaf.
How many people in the U.S. had phones in 1886?
150,000 (one hundred fifty thousand)
How many people in the world own a mobile phone?
60% (sixty percent)
What jobs did Bell have?
scientist, inventor, engineer
How often do you make phone calls? To who?
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