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Samuel Morse invented the electric telegraph.

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Samuel Morse invented the electric telegraph.

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A telegraph circuit is an electrical circuit attached to a telegraph. This circuit is incomplete until the telegraph is connected, allowing for the Morse-code messages by tapping the circuit closed.

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HOW THEY MADE A MORSE CODE MACHINE

Samuel F.B. Morse and Alfred Vail developed an electric telegraph which sent pulses of electrical current to control an electromagnet that was located at the receiving end of the telegraph wire.

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telephone

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The first of the great uses for electricity, began with the telegraph invented by Samuel Morse around 1840.

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