Tossed in space

Researchers at the University of Tokyo have come up with a prototype device that uses ultrasound to create the illusion of tactile 3D objects that can be “felt” with the naked hand–no special gloves or other equipment required. Among other applications, we could see this used at school for blind students; the kids could get information presented in a tactile form while their sighted peers are reviewing the same information visually. The primary limitation is that making the objects too solid would require an amount of ultrasound that could cause hearing loss, but we imagine safe resolutions would still be enough to get a lot of communication across.

BBC: Ultrasound to give feel to games

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