Let me tell you that a phenomenon which the incredulous have classed without a moment's hesitation as fabulous, has just been verified by this company. We wished to see whether the pendulum swings of a suspended ring can be controlled by the concentrated human will. I undertook to fix my will upon it; and thought as hard as I could of circular oscillations. The ring, which is fixed to the ceiling by a silk thread, remained motionless for a very longtime, but at last it began to swing, and it was just beginning to go in circles when you came in and interrupted us."
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