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?. Includes Euler's Disk, 9" concave mirror base and nine pieces of magnetized holographic foil.

Toysmith Euler's Disk in Pakistan

2005 Eulers Disk Spinning Science Toy By Toysmith, Complete

Toysmith Euler's Disk Science and Learning Kit

2005 Eulers Disk Spinning Science Toy By Toysmith, Complete

Toysmith Euler's Disk in Pakistan

Toysmith Euler's Disk Science and Learning Kit

2005 Eulers Disk Spinning Science Toy By Toysmith Brand New

The Official Euler's Disk Website

Toysmith Euler's Disk Science and Learning Kit

Toysmith Euler's Disk – Create A Hypnotic Display of

Toysmith Euler's Disk – Create A Hypnotic Display of

Toysmith Euler's Disk 793631620531

Toysmith Euler's Disk in Pakistan

Toysmith Euler's Disk 793631620531