| Show I 1 optical illusion motion pictures are in reality of still pictures tho first picture of 0 tile the automobile shows tho spokes of tho the wheels in on position IC tho nest exposure of the III film wore worda made when spoke number ono one lind lid ad danced for far enough to bo be in tho the pot tion ilon of spoke number two tho the VIc picture victure turg would show no motion as aa spokes am identical if saoko number ono one hadad had nd danced loss than liala way to position of apolio two tho forward motion on would bo be noticed if however spoke ono one advanced more than halt half ways woy to tf tho the observer it would anve tho effect citco of f spoke two moving backward hs as ficat that distance would be shorter nn and I 1 tile tho I 1 apparent matlon would bo be in that d 11 lon |
