Euler's Disk - A spinning optical illusionEuler's Disk is a puck-shaped, chrome plated, holographic steel disk with a super-smooth edge spins faster and faster to create a hypnotic display of light and sound. Just give it a spin and see for yourself; it's easy! Euler's Disk has created quite a buzz among the scientific community; it is a shining example of energy loss approaching inifinity. The Disk's rhythmic display of light, sound and motion present a musical and visual show! Set includes Euler's Disk, concave mirror tabletop base, and nine cool holographic magnetic reflectors.
Euler's Disk is recommended for kids ages 8 and up.
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