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This instrument was further developed by many others, and became rapidly indispensable in business, government, and in households . The essential elements of a telephone are a microphone ( transmitter) to speak into and an earphone ( receiver) which reproduces the voice at a distant location. [3]
May 8, 2024 · Telephone, an instrument designed for the simultaneous transmission and reception of the human voice. It has become the most widely used telecommunications device in the world, and billions of telephones are in use. This article describes the modern telephone’s components and traces its historical development.
May 21, 2021 · Two men invented the telephone, but Alexander Graham Bell is the one most people today remember. Learn all about Bell and the history of the telephone.
The master telephone patent granted to Bell, 174465, March 10, 1876. The modern telephone is the result of the work of many people. Alexander Graham Bell was, however, the first to patent the telephone, as an "apparatus for transmitting vocal or other sounds telegraphically".
Jul 18, 2023 · If you want to talk to someone, all you have to do is pick up the phone and dial a few digits. You are instantly connected to that person, and you can have a two-way conversation through a telephone call. A telephone line is at the heart of the telephone system.
May 8, 2024 · In the 1870s two American inventors, Elisha Gray and Alexander Graham Bell, each independently, designed devices that could transmit speech electrically. Gray’s first device made use of a harmonic telegraph, the transmitter and receiver of which consisted of a set of metallic reeds tuned to different frequencies.
Nov 9, 2009 · Alexander Graham Bell is known for his many inventions, especially the telephone and a metal detector. He later created the Bell Telephone Company, now AT&T.
The concept of the telephone dates back to the string telephone or lover's telephone that has been known for centuries, comprising two diaphragms connected by a taut string or wire. Sound waves are carried as mechanical vibrations along the string or wire from one diaphragm to the other.
telephone, Instrument designed for simultaneous transmission and reception of the human voice. It works by converting the sound waves of the human voice to pulses of electric current, transmitting the current, and then retranslating the current back to sound.
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Jul 29, 2023 · One pair is an output: it takes outgoing electrical signals from the microphone to the telephone system; the other pair is an input: it takes incoming signals from the telephone system to the loudspeaker.
