4 ms·See also: http://www2.eng.cam.ac.uk/~hemh/gyrobike.htm http://www2.eng.cam.ac.uk/~hemh/gyrobike.htmby tomstuart 15y agoSee also: http://www2.eng.cam.ac.uk/~hemh/gyrobike.htm http://www2.eng.cam.ac.uk/~hemh/gyrobike.htm