There’s a simple reason why high-tech gadgets like PCs, TVs and smartphones are so cheap: they’re mass-produced. By spreading out huge engineering costs over equally huge production volumes, the cost ...

American researchers have built a carbon nanotube knife. According to the National Institute of Standards and Technology (NIST), this nanoknife will be used to cut and study cells. With this new tool, ...

Left: Single pentacene molecules (yellow) on the insulating layer (blue). Right: Electrons with spins aligned in parallel (small arrows) tunnel from the tungsten tip (top) to the molecule (bottom).