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Sound based tractor beam could create next-gen. holograms

Sound waves have long been postulated as a potential avenue for movie-like tractor beam technology, as it’s been possible on a small scale to levitate objects or droplets of water using a pair of speakers or a single set and a reflector. Now though, scientists have been able to achieve …

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3D liquid crystals set to revolutionise monitor technology

Scientists at the University if Colorado have successfully created a system whereby particles can be injected into liquid crystal – bringing order to chaos – and opening up the possibility of a revolutionary new kind of screen within the decade. That’s now been explained and augmented by a clever maths …

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