College of Liberal Arts & Sciences
6J11.65 - Pulfrich Phenomenon - Pulfrich Pendulum
Start the pendulum in a motion perpendicular to the viewer. The viewer should put a dark piece of glass or a filter over one eye. With both eyes open look at the pendulum and notice that it now appears to be going in an elliptical orbit.
- Jerold Touger, "Which Observations Should We Believe?: An Activity Using the Pulfrich Pendulum", TPT, Vol. 48, # 1, January 2010, p. 35.
- Martin Gardner, "The Pulfrich Illusion", TPT, Vol. 33, # 2, p. 117, Feb. 1995.
- Earl Zwicker, "The Pulfrich Pendulum", TPT, Vol. 19, # 8, Nov. 1981, p. 564.
- John T. McGrath, "The Clever Brain", TPT, Vol. 20, # 2, Feb. 1982, p. 72.
- W-060: "Puhlfrich Effect", DICK and RAE Physics Demo Notebook.
- Martin Gardner, "The Pulfrich Illusion", Science Tricks, p. 65.
- Martin Gardner, "The Illusory Pendulum", Entertaining Science Experiments with Everyday Objects, p. 41.
- Jearl Walker, "7.23, Pulfrich Illusion", The Flying Circus of Physics Ed. 2, p. 314.
- Raymond Bruman, "Delayed Vision", Exploratorium Cookbook I, p. 52.1.
- Tik L. Liem, "The Elliptical Pendulum Swing", Invitations to Science Inquiry - Supplement to 1st and 2nd Ed. p. 155.
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