Many people will have banged a battery-powered TV remote on the brink of dying against a table hoping to revive it. But there may now be a more elegant approach.
Samsung, the South Korean electronics company, has decided to do away with replaceable batteries altogether and has created a remote control that is powered through radio waves and solar energy.
The device, made in part from recycled plastic, can charge itself by collecting radio waves from WiFi routers in a house — up to 40 metres away — and convert this into energy, in what is known as RF (radio frequency) harvesting.
A modern household is generally constantly surrounded by energy in the form of electromagnetic waves, from the likes of WiFi, GPS, 4G and
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2022-01-04 00:01:00Z
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