The detector listening out for gunshots

The 'Harry Potter' password replacement

Microsoft shows off watch-like sensor and other tech news

How a lie detector test works

Smart home monitors hygiene habits

Robotic car developed by Oxford University

Lie detector uses heat cameras to detect the truth

How anti-skid stability control systems work at 50mph

Fighting cable theft with technology

Earthquake prediction using accelerometers in laptops

Beating traffic jams 'like a fish'