Barnay Develops Rotary Dial Telephone
At a glance:
- Series: Great Events: 1900-2001
- Categories: Technology, Inventions
- Subcategories: Inventors, Communications
- Curriculum: 20th & 21st Century European History, French History
- Geographical Location: France
- Date: 1923
Article abstract: Barnay developed the rotary dial telephone, which automatically linked the telephone sets of a caller and a person being called.
Rotary Telephone Dials Make Phone Linkups Automatic
The telephone uses electricity to carry sound messages over long distances. When a call is made from a telephone set, the caller speaks into a telephone transmitter and the resultant sound waves are converted into electrical signals. The electrical signals are then transported over a telephone line to the receiver of a second telephone set that was...
[The entire page is 1052 words long]
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