TEDCO Toys TEDCO Toys Mini Hoberman Sphere
The colorful Hoberman Mini Sphere comes out of the box looking like a futuristic Christmas-tree ornament. It's a cross between a ball and a star, and measures 5.5 inches across. But pick it up by any of its dozens of plastic points and this amazing little feat of engineering, or imagineering, expands neatly into a lattice-like globe that's 12 inches in diameter. The inventor calls it a trapezoidal icosatetrahedron; it's a fascinating exercise in complex simplicity. The structure is rigid enough to roll and throw, yet if touched the right way, it will suddenly collapse again, curling in on itself like a defensive hedgehog.
TEDCO Toys Mini Hoberman Sphere
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