Sand Pendulum

Designers & Manufacturers: Nadeem Afzal, Syed Fakhruddin of Links Multicrafts
Size: Height: 26 inches, 18×18 frame, boric powder, pendulum dia: 2 inches, chrome chain: 2 feet.
This science installation is made of a pointed weight at the end of a wire that is suspended over a tray of boric powder. The all-metal pendulum converts kinetic energy into potential energy. The extremely fine powder provides minimal friction, allowing the pendulum to swing for extended periods of time. As the pendulum swings it gently “writes” ever-changing geometic patterns in the sand. The patterns get bigger then smaller then bigger again as the arc of the pendulum also changes.
Images: Humayun Memon

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