The Gyroscopic Collapse is the twenty-third and penultimate episode of the tenth season of The Big Bang Theory.
Synopsis[]
Sheldon, Leonard, and Howard have completed their prototype quantum gyroscope, with testing it being the only thing left to do. However, Colonel Williams has taken over the project, much to their dismay, while Raj has found a new place to live, and Amy is given a chance for a three-month fellowship at Princeton, which she is reluctant to go on.