Magic Fan on Visual Delay

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The Magic Fan STEM Kit introduces kids to the fascinating science of visual perception and motion. As students assemble a spinning fan with patterns or images that appear to move, change, or even stand still, they experience first-hand how the brain processes motion with a slight delay—known as visual latency. Through this engaging activity, learners discover how spinning objects can create optical illusions, revealing key concepts in neuroscience, physics, and art. The kit is a playful yet powerful way to explore how our eyes and brain work together—and why what we see isn’t always what’s really there. Show more