Videos Clips: Sensors

The detector listening out for gunshots

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The 'Harry Potter' password replacement

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Microsoft shows off watch-like sensor and other tech news

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How a lie detector test works

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Smart home monitors hygiene habits

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Robotic car developed by Oxford University

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Lie detector uses heat cameras to detect the truth

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How anti-skid stability control systems work at 50mph

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Fighting cable theft with technology

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Earthquake prediction using accelerometers in laptops

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Beating traffic jams 'like a fish'

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