Tired of short-lived batteries? Methanol-powered micro fuel cells are racing toward market, promising up to 20 hours of cell-phone talk time.
A camera and algorithm know it's you.
Devices that build themselves are key to nanotech.
A college junior shed new light on a century-old problem.
Absurdly broad stem cell patents are shutting down promising research.
DuPont's energetic chairman is reinventing the nearly 200-year-old chemical company, shifting its emphasis to biology-based materials and electronic displays.
Wireless sensors probe the infrastructure.