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Japan has scooped the Guinness World Record for the world's largest theremin ensemble, with 272 instruments shaped like matryoshka dolls.
Make beautiful music with Moog's pitch-corrected Theremini, a theremin that helps you learn without sounding like an angry cat.
An Australian installation made of person-shaped, LED-filled sculptures serenades Sydney passersby using proximity sensors.
Augmented-reality goggles called Spaceglasses put an interface right on your face. Ikea's getting into the augmented-reality game with its futuristic catalog, and beware of toilet hackers. It's a thing.