What if a dead phone could send text messages? What if smartwatches could send WiFi signals without using up all their battery power? That's the idea behind backscatter wireless devices, which reflect ambient wireless signals instead of generating the signals from scratch. That's a lot easier on the battery than conventional wireless tech, using approximately .01 percent of the conventional wireless tech, and it could make a big difference in the new generation of wearables, which tend to avoid Wi-Fi entirely.
via The Verge - All Posts http://ift.tt/1ymKzAo
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