Optical imaging includes a variety of imaging techniques that rely on illumination light in the ultraviolet, visible and infrared regions of the electromagnetic spectrum. The term typically ...

The Tooth CheckerTM tool can check that either crests, roots, or both, are in tolerance, such as on this medical rasp VisionGauge® by V ...

Optical illusions challenge the brain's perception by presenting visually perceived images that differ from reality. This article introduces a puzzle featuring a grid of the number 45, with a ...