Rotating Rings

This one freaks a lot of people out. Every time you switch from looking at the red dot to the yellow, or vice versa, both wheels start spinning in the opposite direction. The illusion exploits differences in the way we interpret motion in the center of the visual...

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American Gothic

In 1930, Iowa artist Grant Wood painted American Gothic. The models he used for the painting were his sister Nan Wood Graham and his dentist, Byron McKeeby.

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You take the high road…

This looks like two photos of the same road, taken from different angles. But it’s actually just the same photo twice. Apparently, the visual system treats the image as if it were a single photo of two separate roads. The outlines of the two roads are parallel to one...

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Pizza Math

Did you know that an 18" pizza has more calories than two 12" pizzas? Here is the math: 18" Pizza = Π(18/2)2 = 254 square inches 12" Pizza = Π(12/2)2 = 226 square inches Think about that, the next time you open the Domino's Pizza App!!

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