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Electricity can be streamed wirelessly across a room through thin air, researchers have found.
Scientists from Seoul, South Korea, have figured out how to transmit 400 milliwatts (mW) of electricity over nearly 100 feet using infrared laser light, according to research published in the journal Optics Express.
“The ability to power devices wirelessly could eliminate the need to carry around power cables for our phones or tablets,” research team leader Jinyong Ha from Sejong University in South Korea said in a statement. “It could also power various sensors such as those used for monitoring processes in manufacturing plants.”
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