Li-Fi: Time to say goodbye to Wi-fi

Many of us have settled down for the wi-fi happily after the slow and sluggish dial up networks. But we are just the ordinary who thought wi-fi was the ultimate. But not for people wanting something supersonic and more than real time. They have invented Li-Fi!!

Yes, Li-fi offering speeds of up to 1Gbps (gigabit per second), a connection that is boasted to be 100 times faster than the good old wi-fi of today. However, laboratory tests have shown theoretical speeds of up to 224 Gbps.

Li-fi was tested this week by Estonian startup Velmenni, in Tallinn. Li-fi requires a light source, such as a standard LED bulb, an internet connection and a photodetector. The technology could reach consumers "within three to four years.

See how it works:

The term li-fi was first coined by Prof Harald Haas from Edinburgh University in 2011 when he demonstrated the technology at a Ted (Technology, Entertainment and Design) conference.

Read more about it at: BBC | Photo

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