also "Smartdust Motes" "...tiny, bottle-cap-shaped micro-machines fitted with wireless communication devices - that measure light and temperature [among other things, such as environmental monitoring, health, security, distributed processing and tracking - ed]. When clustered together, they automatically create highly flexible, low-power networks with applications ranging from climate-control systems to entertainment devices that interact with handheld computers." [ What 'Smart Dust' Could Do for You By Zillah Bahar. 06/2001

Smartdust is a hypothetical network of tiny wireless microelectromechanical systems (MEMS) sensors, robots, or devices, installed with wireless communications, that can detect anything from light and temperature, to vibrations, etc.