add, search, annotate, link, view, overview, recent, by name, random
news, help, about, links, report a problem
or get an account
The rotational energy of the spinning weight on the gyroscope arm will decrease with friction, so electric motors are built into the arm to maintain angular velocity. A balancing mass capable of moving closer or farther from the gyroscope's center could ensure a relatively consistent angular velocity of precession by moving closer or farther from the center of the traffic intersection (i.e. lengthening or shortening the moment arm).