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Tag: Dundee University

Scientists Building Doctor Who’s Sonic Screwdriver

Scientists Building Doctor Who’s Sonic Screwdriver
Dundee University researchers have created Doctor Who’s sonic screwdriver. Or at least a rough version. The machine can use ultrasound to lift and rotate a rubber disc floating in a cylinder of water. This is important because it is the first time ultrasound waves have been used to turn objects instead of pushing them.