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Li-Fi, a wireless technology that transmits data using light rather than radio bands, has just been tested outside a lab for the first time, and it’s really, really fast.

Li-Fi, which was invented by the University of Edinburgh’s Harald Haas back in 2011, uses visible light communication (VLC) and what is essentially a very advanced form of Morse code: an LED flicks on and off at speeds imperceptible to the naked eye which can be used to write and transmit information in binary code.

For the first time ever, scientists have trialled the technology outside of a lab and found that they can transmit data at 1GB per second, which is 100 times faster than Wi-Fi. What this means is that the technology has the potential to completely change the way we use the internet.

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