DetailsPentomino Bracelet _Designed by isohedral ( https://www.shapeways.com/model/830098/pentomino-band.html?li=productGroup&materialId=6 ) _A pentomino is a plane geometric figure formed by joining five equal squares edge to edge. It is a polyomino with five cells. There are twelve pentominoes, not counting rotations and reflections as distinct. They are used chiefly in recreational mathematics for puzzles and problems.Pentominoes were formally defined by American professor Solomon W. Golomb starting in 1953 and later in his 1965 book Polyominoes: Puzzles, Patterns, Problems, and Packings. _Golomb coined the term "pentomino" from the Ancient Greek πέντε / pénte, "five", and the -omino of domino, fancifully interpreting the "d-" of "domino" as if it were a form of the Greek prefix "di-" (two). Golomb named the 12 free pentominoes after letters of the Latin alphabet that they resemble.Ordinarily, the pentomino obtained by reflecting or rotating a pentomino does not count as a different pentomino.ach of the twelve pentominoes satisfies the Conway criterion; hence every pentomino is capable of tiling the plane.Each chiral pentomino can tile the plane without reflecting it.
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SKU 10000921 Length [mm] 79.58 Width [mm] 79.58 Height [mm] 40 Volume [cm³] 3.53 Area [cm²] 84.21