Powering your Phone from Thin Air

PoWiFi-wirless-power-university-of-washington-1-537x302What if you could power your iPhone from thin air? Making wires redundant was one of Nikola Tesla’s biggest dreams – a dream University of Washington researchers want to fulfill with PoWiFi. Shyam Gollakota and his team recently demonstrated technology at EmTech Digital in San Francisco that harvests ambient ‘backscatter’ radio signals to power battery-free temperature and camera sensors.

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