Copy - Alexander Graham Bell
Marialey K
Created on September 27, 2024
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Transcript
Alexander Graham Bell
Inventor of the telephone!
Watch this video up to 1:40
How did Alexander Graham Bell create the telephone and why?
The needle was connected by wire to the battery, and the battery was connected by wire to a receiver. When Bell spoke into the open end of the drumlike device, his voice made the paper and needle vibrate. The vibrations were then converted into an electric current which traveled along the wire to the receiver.
1. Why did Alexander Graham Bell create the telephone?2. How did his invention change the world?
Infer
Friday 7th June 2023