Can you tell the difference between human and nonhuman embryos?
This ancient temple holds a secret...can you reveal the mystery?
Leonardo's famous painting is used in an interesting perceptual experiment.
Can you make your palm squirm?
See colors that aren't really there.
Sometimes things are not as they appear.
Your eye movements make this design seem to shimmer.
Is it light gray or dark gray? It depends on the surroundings.
Four exhibits small enough to fit on postcards.
If you stare at this dot, for few moments it disappears.
Tease your brain with five interactive illusions. You won't believe your eyes.
You can mix just three colors of light to make over 16 million different colors!
Pier 15(Embarcadero at Green Street)San Francisco, CA 94111(415) 528-4444
© 2015 Exploratorium
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