Scientists have set a new record for data transmission using li-fi

[ScienceRocks]

Scientists have set a new record for data transmission using li-fi

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Back in November, a wireless technology called li-fi made a splash, proving to be 100 times faster than average wi-fi speeds in its first 'real world' tests.
Unlike wi-fi, which is based on radio frequencies, li-fi uses a much faster system based on visual light, and researchers in Saudi Arabia have just developed a lightbulb that can transmit data more than 40 times faster than any existing li-fi devices.

The invention of li-fi has been credited to Scottish communications expertHarald Haas from the University of Edinburgh, when he demonstrated for the first time back in 2011 that by flickering the light from a single light-emitting diode (LED), he could transmit far more data than a cellular tower.
The technology is based on something called Visible Light Communication (or VLC), which piggy-backs on visible light frequencies between 400 and 800 terahertz (THz).
Using these light frequencies, li-fi works like an incredibly complex form of Morse code - by flicking an LED on and off at extreme speeds imperceptible to the human eye, you can write and transmit data in binary code.
Imagine having smart LEDs installed in your home and office ceilings that can wirelessly connect to your computers, phones, printers, and air-conditioning units as they illuminate the space.

Nice