A fault inspection method and apparatus in which the scattergram is separated or objects of comparison are combined in such a manner as to reduce the difference between an inspection object image and a reference image. A cylindrical torsional actuator is comprised of a plurality of tubular piezoelectric ceramic segments poled along their length, aligned in alternate polarity and bonded together with intervening electrodes. The gyroscopic forces are also be used to affect the bank angle of vehicles in turns, and to improve cornering by shifting forces to the inside wheels. The device may be used to produce nitric oxide to assist breathing. A closed novel extrusion profile with an approximately tweezers-shaped cross-section is preferably used in the production of the tweezers. The gesture processing device implements a guide mode to execute an action within the participant domain based on a gesture from the guide gesture sphere.