This isn’t a Halloween trick or decoration, but it’s still a bit creepy. Not sure what a Psi wheel is? Check out the wikipedia entry.

Making a psi wheel can be an interesting demonstration of telekinesis or science, depending on your individual perspective. Unlike a psi ball, a psi wheel creates a readily observable effect that’ll have most people scratching their heads. This article will describe how to make and use one, followed up by some theories as to why putting your hand near a piece of paper can make it spin.

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