By Jamie Condliffe

Touch feedback has been advancing rapidly of recent time, and now we’ve gotten to the stage where ultrasound can be used to create entire 3D shapes to touch and feel in thin air.

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Source:: http://feeds.gawker.com/~r/gizmodo/full/~3/dwMjY3qaBpU/ultrasound-can-let-you-touch-and-feel-3d-shapes-in-thin-1665592066