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It also utilises spacial sound, delivering audible feedback from all directions in reference to the wearer--even from behind.
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Tech-savvy Chief Minister of Gujarat Narendra Modi scored a first when he launched his election campaign for Assembly by addressing rallies in four cities simultaneously.
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Some found it eerie, some were elated but overall the resurrection of dead rapper Tupac Shakur at the Coachella festival in California was given thumbs up by everyone.
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The holographic device plays a 3-inch projection at 15 frames per second, just shy of movie refresh rates of 24 to 30 frames per second.
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