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Alexander Graham Bell received the first patent for a telephone in 1876. He came up with the idea at his summer home in Brantford, Ontario, Canada, but built the first device in Boston, Massachusetts, USA. There are several other competing claims for who should be given credit for inventing the telephone, including Antonio Meucci and Elisha Gray.

The basic principle of the telephone is that the vibrations of sound waves hitting a conductor can cause the electricity passing through the conductor to fluctuate, and those electrical fluctuations can then cause a magnet to recreate the sound waves. If you speak at the first conductor (the microphone), and then pass the electrical fluctuations to a magnet (the speaker) at the other end of a wire, you have a telephone.

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12y ago

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