Energy-harvesting design aims to turn Wi-Fi signals into usable power

Any device that sends out a Wi-Fi signal also emits terahertz waves —electromagnetic waves with a frequency somewhere between microwaves and infrared light. These high-frequency radiation waves, known as "T-rays," are also produced by almost anything that registers a temperature, including our own bodies and the inanimate objects around us.

from Phys.org - latest science and technology news stories https://ift.tt/33W9WB4

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