Foucault's Pendulum 15"

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When Leon Foucault set up a simple experiment in 1851, little did he know the importance of what he was about to tell the world? While it was path-breaking, brave, and a novelty at that age, it's different now - You don't have to convince anybody anymore that the earth rotates around the sun. As Foucault's Pendulum twirls through the fine sand, it gently creates an ever-changing geometric pattern. The patterns get bigger, then more minor, and then more extensive as the pendulum's arc changes. Material: Plastic, metal, and fine sand. Show more