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Benham's Disk
When the disk is spun, the colors you see are illusions. This effect was popularized in 1894 by toymaker C. E. Benham, who called his spinning disk an “artificial spectrum top."
Where: Crossroads: Getting Started
Color Conflicts
When can reading get in the way of speaking?
Sensitive Plants
Gently touch these plants and see how they respond.
Where: Gallery 4: Living Systems
Time to Think
At this exhibit, you can test your reaction time in three different scenarios—each requiring an increasing amount of thought. In the process, you can actually measure the time it takes your brain to accomplish the extra work of making a (fast) decision.
