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Magnetism and spin

Magnetism and spin

WiFi signals used to power small electrical devices

02 Jun 2021
Researchers with a STO chip
WiFi harvesters: Hyunsoo Yang (left) and Raghav Sharma, who is holding a chip embedded with about 50 spin-torque oscillators. (Courtesy: National University of Singapore)
Ambient WiFi signals can be used to power small electrical devices such as LEDs, researchers in Sing

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Sam Jarman is a science writer based in the UK
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