"Perception 111" by stevensahttp://www.trailfire.com/stevensa/trails/20079stevensa/trails60Wagon-wheel effect - Wikipedia, the free encyclopediahttp://www.trailfire.com/stevensa/marks/34675Perception 111stevensaWed, 13 Dec 2006 17:22:10 -0800trailfire:markId:34675Temporal aliasing - Wikipedia, the free encyclopediahttp://www.trailfire.com/stevensa/marks/34676Perception 111stevensaWed, 13 Dec 2006 17:24:53 -0800trailfire:markId:34676