The fusion of hypnosis and magic by Mr. Birdie. The phenomenon of "a pendulum moving on its own," which is sometimes used to induce hypnosis, is explained as unconscious muscle movement, also known as ideomotor action. ● It is likely already well-known that a pendulum held by a spectator will begin to move through suggestion, verbal guidance, or imagery. ⇒ Nevertheless, it is still a mysterious and interesting phenomenon. ● But what if a pendulum could move on its own and tell us something that neither the performer nor the spectator knows...?