Sonic screwdrivers may soon be more than props at Doctor Who conventions (Image: R. Steven Rainwater via wikipedia)
The sonic screwdriver has proven an indispensable piece of equipment for Doctor Who when battling Daleks, Cybermen and the Master. The fictional tool is capable of opening just about any lock known to man - or alien - and can fix a damaged TARDIS in a matter of seconds. Now engineers at Bristol University say a real-life version of the sci-fi screwdriver could be created that would use sonic technology to open locks and undo screws ... just don't expect to see one under the Christmas tree this year.
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