set in motion
Start something moving, give impetus to something, as in A press conference set the new project in motion. It is also put as set the wheels in motion, as in Let's set the wheels in motion for the new library wing. This idiom dates from about 1800. It was preceded by put in motion, which dates from the mid-1600s.
|set in motion|
|get going; give impetus to; "launch a career"; "Her actions set in motion a complicated judicial process" [syn: launch]|