Who looks at a screwdriver and thinks, "Ooh, this could be a little more sonic"?
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...
According to Professor of Ultrasonics at Bristol University, Bruce Drinkwater, the secret lies in ultrasonic waves that can be used to apply forces to objects. Such technology is already being trialed in modern manufacturing to fix parts together and ultrasonic force fields are being developed for use in the medical field to separate diseased cells from healthy ones.
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