The Sympathetic Silks

A beautiful problem with silks. A great favorite of Houdini. In various forms, this problem has graced the acts of a number of professionals. I present it to you in its simpler form.

Six silks are shown separately. Three are placed on the seat of a chair. The other three are knotted together by the corners. Performer explains that a sympathetic bond exists between the two sets of silks. Because one set was tied, the other set also ties itself. The three separate silks are lifted from the chair and are found to be tied in the same way as the tied set. Magician unties these silks, and when he picks up the other three, they are found to have mysteriously untied themselves also.