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.
Electrical, hydraulic, or pneumatic device (such as a relay) that controls the flow of material or power. Also called actuation device. I liked to study machines and today I had a look at an interesting thing called an actuator, which I had never heard of. 17 people found this helpful.