Let there be light : a brilliant TED talk by Prof. Harald Haas


I just came across this beautiful TED talk by Prof. Harald Haas of University of Edinburgh, UK. He explains and demonstrates the upcoming Li-fi technology using the visible light to get a wireless communication. Li-fi replaces our commonplace wi-fi technology that uses microwaves for data transfer. The key role in this technology is played by the light emitting diodes (LEDs), whose off and on state can be exploited as digital signals.

I could not get time to go into detail, but this article has a nice introduction of this promising technology.

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s