Are the circles moving? Mind-bending optical illusion will leave you baffled

dailystar.co.uk:

optical illusion, you might change your mind once you've seen this one. The latest mind-boggling brainteaser asks people whether or not the circles in the image are moving.

It was shared on Optics4Kids and shows black, blue, green and white colours on a background. The image looks as though it is forming a pinwheel sort of shape.And by looking at the optical illusion, the little shapes will make you think that they're constantly moving in circular motions.But that's where you're wrong and the confusing brainteaser isn't as complicated as you think.So are you looking for the answer?According to the website, the pinwheels aren't actually moving.It is an example of a Moiré effect which occurs when viewing a set of lines or dots on another set.