Device transmits radio waves with almost no power – without violating the laws of physics
A new ultra-low-power method of communication at first glance seems to violate the laws of physics. It is possible to wirelessly transmit information simply by opening and closing a switch that connects a resistor to an antenna. No need to send power to the antenna. Our system, combined with techniques for harvesting energy from the environment, could lead to all manner of devices that transmit da
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