rick@hanauma (Richard Ottolini) (02/02/89)
Different regions of your eye perceive flicker differently. I can often perceive the 30Hz harmonic flicker in CRTs or fluorescent lights from my peripherpheral vision where cone cells dominate, but rarely from straight on where the color-rod cells dominate. 24 movie frames per second is probably the minimum for smooth motion, but twice that rate is noticably better. Early silent films and newsreels were at 16 frames per second and appear choppy.