Human arm transmits broadband

First we sent data through wires, then the air, now the human body is becoming a communications conduit.

Researchers at Korea University in Seoul have transmitted data at a rate of 10 megabits per second through a person’s arm, between two electrodes placed on their skin 30 centimetres apart.

The thin, flexible electrodes use significantly less energy than a wireless link like Bluetooth. That’s because low-frequency electromagnetic waves pass through skin with little attenuation, a route that also shelters them from outside interference.

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