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Wi-Fi signals could prove useful for spies

A router’s emissions can paint a picture of activity in a room ....

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WiFi Signals Converted to Energy Could Allow Us to Power Electronics Wirelessly

autoevolution
24 May 2021, 15:06 UTC ·
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1 photo
Our existence relies on so many gadgets that are part of our power-draining lifestyle. But batteries could no longer be necessary in the future, thanks to a major discovery. Scientists are working on a technology to convert WiFi signals into energy, allowing us to power all our electronics wirelessly.
A team of researchers from the National University of Singapore and Japan’s Tohoku University came up with a technology to harvest WiFi signals using spin-torque oscillators (STOs). These are very small devices that generate microwaves and can convert wireless radio frequencies into energy. Using the STOs, the scientists were able to power a LED without the need for a battery, which gave them hope for many other future applications. ....

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Unused WiFi Signals Now Power Electronics: Here's How STOs Harvest, Convert Wireless Radio Frequencies

19 May 2021, 08:05 am
Who would have thought that unused WiFi signals can be harvested and converted into energy to power small electronic devices?
This is what a research team from the National University of Singapore (NUS) and Japan s Tohoku University (TU) discovered.
(Photo : Photo by Ian Gavan/Getty Images for Deutsche Telekom)
A general view as volunteers gathered at UCL to mark the launch of a brand new mobile phone game, Sea Hero Quest and become a part of scientific history on May 3, 2016 in London, England. Through this event, 350 people collectively playing the game for 10 minutes generated the equivalent of one years worth of similar lab-based research data, to help in the fight against dementia. #gameforgood www.seaheroquest.com ....

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New Method Harnesses Wireless Signals to Power Miniature Electronics

New Method Harnesses Wireless Signals to Power Miniature Electronics
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