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Electricity complete changed communications. Once it was discovered that аn electric current would flow along a wire, it seemed possible that it could be used for messages. As long as two places were connected by a wire electric currents could be sent along it. They could be sent with the speed of light. The question was how could electric current make words?
Electric currents changed information.
Electric currents flow along the circuit.
Electric current can be sent when two places aren’t connected by a wire.
The electric currents could be sent with the speed of light.