LiFi is the next stage of the internet it seems. Imagine your internet connection powered by light. It is believed that it would be cost saving and far more efficient than WiFi.
Additional advantages of LiFi would be that it may be used in areas where WiFi may not be suitable such as on aeroplanes or in hospitals.
This is a good article on LiFi:
And this one too:
http://www.theweek.co.uk/technology/55813/lifi-light-based-broadband-puts-wifi-shade
LiFi research was conducted by the Ultra Parallel Visible Light Communications project, which involves several seats of learning such as the universities of Oxford, Cambridge, Edinburgh, St Andrews and Strathclyde.
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