The Inquirer-Home  Lightbulbs can be used to broadcast wireless
internet  LiFi is coming Thu Aug 25 2011, 17:16  A BOFFIN HAS
DISCOVERED a way to use lightbulbs to broadcast wireless
internet, dubbed 'LiFi'.  Physicist Harald Hass said he has
developed a technology that can broadcast data through the same
connection as a normal lamp.  Handily, just turning on the light
switch in a room would switch on the internet connection,
according to Professor Hass of the school of engineering at
Edinburgh University in the UK.  Hass claims that 'LiFi', or
Light Fidelity, could send wireless data from the 'white space'
in TV spectrum or unused satellite signals.  Current methods
using radio waves to transmit data are inefficient, he said,
citing mobile phones as an example. In this case there are 1.4
million base stations boosting the signal but most of the energy
is used to cool it, meaning it is only five per cent efficient.
But the 40 billion light bulbs in use across the world are far
more efficient and by replacing