Glasgow scientists slow down light to the speed of sound,

Issued: Sun, 15 Jan 2012 13:17:00 GMT

"SCIENTISTS at Glasgow University have slowed down light to the speed of sound for the first time using a technique that could find a place in the super computers of the future.

The discovery has been hailed as a possible indicator that light could be used in sophisticated quantum computers, which will eventually replace current technology.

The scientists shone a simple image of an ellipse through a ruby which was rotating at the same speed as a dentist’s drill.

As it passed through the jewel, the light beam became a million times slower but also rotated, or “dragged”, by five degrees –enough to be noticed by the naked eye. Most importantly, the image emerged unaltered from the ruby."

Read the full article at heraldscotland.com