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Harald Haas's Li-Fi Vision: Light Bulbs That Transmit Data

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In a TED talk, Harald Haas of the University of Edinburgh shows how a beam from a light bulb can be rigged up to transmit a high definition video stream. The grand vision: LED lights with added microchips will let us transmit thousands of data streams in parallel, enabling us to access the Internet on smartphones wherever there is a light source.


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