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The Telephone
Part 1 of Paper
.... the receiver, are contained in the
handset. The microphone converts speech into its direct electrical analog, which
is transmitted as an electrical signal; the earphone converts received
electrical signals back to sound. The switch hook determines whether current
flows to the telephone, thereby signaling the central o.... Part 2 of Paper
....mically troubled as the 30's depression, everyone was looking for a
competitive edge.
The telephone wasn't invented in the thirties, nor was the first
transatlantic line built then, but the thirties represents a time in history
when the world was changing incredible fast and much of that change was made
possible by the the telephone. Without the telephone, progress would have been
much slower and people might not have been so receptive to change. We owe a
great deal to Alexander Graham Bell, .... |
| Number of words: 317 - Approximate pages: 2 |
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