Exhibition sized revolving spiral optical illusion

This is a well known illusion. Staring at the centre of the revolving spiral for 20 or 30 seconds and then looking at the back of one’s hand creates a sensation of creeping flesh. Cambridge magician and engineer Tony Middleton made this in 2016 for display at Davenports magic museum in North Walsham, England.

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Year
Date 2016
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Ref no N1288