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PhoTOP Phosphorescent Spinning Toy

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Here is another trippy toy from Sirius Enigmas: the PhoTOP is a phosphorescent spinning toy. It consists of a flat disk with a two part aluminum spindle. The disk measures 12cm. Simply give it a spin and shine a UV/deep purple 405nm laser pointer at it to see the effect.

😵 PhoTOP Phosphorescent Spinning Toy - Gadgetify

The PhoTOP was invented by Kenneth Brecher, Professor of Astronomy and Physics, Emeritus at Boston university. You can get it on Etsy.

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