 Because of the finite thickness of the driving wheel's fork (i.e., slot for the driving pin), this device generates a discontinuity in the angular acceleration formula_27, and an unbounded angular jerk formula_28 in the driven wheel.Jerk does not preclude the Geneva drive from being used in applications such as movie projectors and cams.In movie projectors, the film advances frame-by-frame, but the projector operation has low noise and is highly reliable because of the low film load (only a small section of film a few millimeters thick is driven), the moderate speed (2.4 m/s, 8.6 km/h), and the low friction.