Doctor Who? Doctor Mike, that is!
Move over, Matt Smith. Mike MacDonald of Dundee University, Scotland - who could very well be the Time Lord himself visiting us in the present time - has invented a real sonic screwdriver.
From the BBC:
The Dundee University researchers have created a machine which uses ultrasound to lift and rotate a rubber disc floating in a cylinder of water.
It is said to be the first time ultrasound waves have been used to turn objects rather than simply push them.
The study could help make surgery using ultrasound techniques more precise, the physicists said.
The BBC has the video clip and story, but while you're waiting for the real sonic screwdriver to come about, you can make do with these Doctor Who Sonic Screwdrivers and other Doctor Who items from the NeatoShop.