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Roman bronze dodecahedron found in Tongeren, Gallo-Roman Museum, Tongeren A Roman dodecahedron or Gallo-Roman dodecahedron [1] [2] is a small hollow object made of copper alloy which has been cast into a regular dodecahedral shape with twelve flat pentagonal faces.
Armand Spitz used a dodecahedron as the "globe" equivalent for his Digital Dome planetarium projector, [10] based upon a suggestion from Albert Einstein. Regular dodecahedrons are sometimes used as dice, when they are known as d12s, especially in games such as Dungeons and Dragons.
A regular dodecahedron or pentagonal dodecahedron [notes 1] is a dodecahedron composed of regular pentagonal faces, three meeting at each vertex.It is an example of Platonic solids, described as cosmic stellation by Plato in his dialogues, and it was used as part of Solar System proposed by Johannes Kepler.
Amateur archaeologists in England have unearthed one of the largest Roman dodecahedrons ever found, but mystery surrounds what it was actually used for.
As a parallelohedron, the rhombic dodecahedron can be used to tesselate its copies in space creating a rhombic dodecahedral honeycomb. There are some variations of the rhombic dodecahedron, one of which is the Bilinski dodecahedron. There are some stellations of the rhombic dodecahedron, one of which is the Escher's solid.
If you expand an icosidodecahedron by moving the faces away from the origin the right amount, without changing the orientation or size of the faces, and patch the square holes in the result, you get a rhombicosidodecahedron.
It can be seen as the compound of an icosahedron and dodecahedron.It is one of four compounds constructed from a Platonic solid or Kepler-Poinsot solid, and its dual.. It has icosahedral symmetry (I h) and the same vertex arrangement as a rhombic triacontahedron.
Were Roman dodecahedrons ordinary ground holders of a different type of Roman amphora? [ edit ] The roman amphora has designed as it must be hold on the ground in some way and its look like roman dodecahedron can be used for such purpose.