Bad Astronomy Another brain-frying optical illusion: What color

The spheres in an optical illusion appear to be different colors, but they are actually all the same.

Color Illusions and Color Blind Tests

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How Gaming Affects the Brain

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Bad Astronomy, Viral Illusion Will—and Should—Have You Doubting Your Eyes

Color Illusions and Color Blind Tests

Staring at this optical illusion could improve your eyesight, scientists claim - so does it work for you?

Bad Astronomy, Viral Illusion Will—and Should—Have You Doubting Your Eyes

Blue or black? 12 dots or 3? The science of optical illusions - and why they matter

When the Sun starts burning helium, why will its size grow bigger? - Quora

The optical illusion that tricks your brain into seeing colour, The Independent

Bad Astronomy, This Illusion Knows When You Are Looking at It

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