"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." We’re willing to bet it’s been a minute since you prepared slides in a science lab. If your kid’s back-to ...

Physicists in Leiden have built a microscope that can measure no fewer than four key properties of a material in a single scan, all with nanoscale precision. The instrument can even examine complete ...

Left: Images of fluorescent particles that are above, at and below (top to bottom) the vertical position of best focus of a microscope. Calibrating the effects of lens aberrations on the apparent ...