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More details about STEM LAB RANDOM GENERATOR 3D Mechanical Puzzle UGEARS

A cube with an octahedron inside is the main element of the Random Generator. It also features a metal ball which provides weight. This structure is put in motion by a manually initiated rack-and-gear drive which provides energy through a driven gear, which rotates a three-axle gear. With all of these in place, the cube is ready for a bit of magic! Studying of the main structure reveals the physics behind the ‘magic’, though. Here is what an inquisitive eye can find.

The octahedron vertices and the cube sides are congruent. When the energy of the system ceases to move it further, gravity pulls the metal ball to the bottom of the octahedron and it pulls down one of the octahedron’s vertices. The cube rotates with the octahedron with one if its sides inevitably facing the top of the structure (and providing you with that sought-after answer to your query!)

Every side of the cube has potentially life-altering messages (i.e. “YES” or “TRY AGAIN”) and, based on the mechanics of the freely-rotating octahedron and the number of its vertexes, the probability of getting one or the other answer is 1/6!

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