Indian Express
Scientists, including one of Indian-origin, have used Wi-Fi signals
to power a battery-free camera five metres away, an advance that brings
the idea of Internet of things closer to reality.
Internet of things is the concept that almost every object could be
fitted with a chip that broadcasts data such as its location or whether
some other parameter such as temperature or pressure is dangerously high
or low. However, for the Internet of things to become a reality
engineers have to solve one potential problem: how to power these
numerous tiny machines.
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