You have likely heard of variable valve timing by one of the names manufacturers have for the system, such as VVT-i or VTEC.

What does control variable actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

The new SuperK VARIA from NKT Photonics is a computer-controlled variable bandwidth filter that effectively turns a supercontinuum white light source into a powerful single-line laser. Designed for ...