How digital movie projectors work.
Computer models could revolutionize drug development.
The first PC? Set the Wayback Machine to 1950.
Tired of sitting on the runway? In a radical experiment that may provide a glimpse into the future of air traffic control, UPS is testing a satellite-based data communications system that could unclog the skies.
Absurdly broad patents are channeling resources from innovation into lawyers' pockets.
High-tech tags will let manufacturers track products from warehouse to home to recycling bin. But what's great for logistics could become a privacy nightmare.
Nobelist Smalley explains how "carbon nanotubes" will affect everything, from living cells to electrical transmission.