La Vie en rose. La Vie en rose (French pronunciation: â) was the signature song of popular French singer Ãdith Piaf, written in 1945, popularized in 1946, and released as a single in 1947. The song became very popular in the USA in 1950 with no fewer than seven different versions reaching the Billboard charts.
An actuator is a type of motor that is responsible for moving or controlling a mechanism or system. It is operated by a source of energy, typically electric current, hydraulic fluid pressure, or pneumatic pressure, and converts that energy into motion.
Actuators can be used for the purposes of automatic control such as in washing machine cycles, remote control such as the use of a centralised control room, or because manual control is too difficult such as when the valve is very large.