Tag Archives: dice

An Easy Way to Find a Better President

Obtain nine ten-sided dice, as seen above. Use them, one at a time, to generate nine random digits, in order. Check to see if a living person has that Social Security Number. If so, check to see if the person … Continue reading

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Three Polyhedra Which Resemble Caltrops

Caltrops, when resting on a horizontal surface, have a sharp, narrow point sticking straight up. Stepping on such objects is painful. Most polyhedra do not have such a shape; the most well-known example of an exception to this is the … Continue reading

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On Convex, Dodecahedral “Fair Dice”

One of my early introductions to polyhedra came through playing the game Advanced Dungeons and Dragons (AD&D), which uses a standard seven-die set which includes the five Platonic Solids, plus two “d10s” (either ten-faced dipyramids or trapezohedra) which are used as … Continue reading

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How to Get Fair Dice with Various Numbers of Possible Results, from Two to Thirty, Using Different Polyhedra

For a d2, number a cube’s faces with three ones and three twos. For a d3, number a cube’s faces 1,1,2,2,3,3. The standard d4 is a Platonic solid, the tetrahedron. Double-numbered (two ones, two twos, etc.) octahedra are sometimes used … Continue reading

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Octahedron with Beveled Vertices

As an eight-sided die, this would work better than the Platonic octahedron, for it would roll more smoothly. Software credit: see http://www.software3d.com/Stella.php.

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