After analozation of strange phenomenon of paper rotating(or turning ), I made this movie to explain what I knew. The mechanism of paper rotaing is a repetition of inside reverse fold. t's very fancy for me and for some people who loves paper. Enjoy please and find new fancy phenomenon for us. Back ground music is Twelve Variations on "Ah vous dirai-je, Maman" of W.A. Mozart by Walter Wilhelm Gieseking 1953.
