William Crookes tested the psychic Daniel Dunglas Home in 1871 and proved telekinesis is real. He tested Home in laboratory conditions that prevented fraud. Crookes even jumped up and down on the apparatus to prove it couldn't be moved by Home if he tried to cheat.
Crookes' book, Researches into the Phenomena of Modern Spiritualism, has diagrams of the equipment and wind-up chart recorder graphs showing the spontaneous movements.
It even has a drawing of the cage in which the accordion was seen to be playing itself.
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