The Light Bulb
What did people use for light before the light bulb?
They used candles
When was the Industrial Revolution?
It was from 1780 to 1850
Who invented the telephone?
Alexander Graham Bell
Who invented the light bulb?
Thomas Alva Edison
Who invented the steam engine?
James Watt
Where was Alexander Graham Bell from?
He was from Scotland
When was the light bulb invented?
It was invented on 22 October 1879
What two types of transportation used the steam engine?
Trains and boats used the steam engine
Who was Alexander Graham Bell's partner?
His partner was Mr. Watson
How long did the first light bulb last?
It lasted 13.5 hours
What did the steam engine use for power?
It used the energy from steam
What are the three main parts of a telephone?
The three main parts are the speaker, microphone and (hook) switch
How many inventions did Thomas Edison design?
He designed more than 1000 inventions
It changed from a rural society to an urban society
When was the telephone invented?
It was invented in March, 1876