Toysmith Euler's Disk 793631620531

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Euler's Disk

Toysmith Euler's Disk – Create A Hypnotic Display of Light & Sound with Our Office Desk Accessories – Science Toys for Adults & Kids 8+ : Toys & Games

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2005 DaMert Company EULER'S DISK Spinning Science Toy By Toysmith Complete 793631620531

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Euler's Disk

Toysmith Euler's Disk 793631620531

Fascinating Desktop Illusions! Spin the holographic disk on the mirror. Does it speed up? Listen to its rhythmic sounds. Why does the humming get louder as the speed of the disk increases? This patented 3 diameter chrome-plated steel disk creates a hypnotic display of light and sound as it rotates. Includes Euler's Disk, 9 concave mirror base and nine pieces of magnetized holographic foil. Complete with instructions and the scientific answers!.