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• Regular icosahedron.
• Truncated icosahedron.
• Basic features of common polyhedra; the octahedron, icosahedron and cuboctahedron have been applied to commercial maps. ...
• Gnomonic map projected onto an icosahedron; "central" meridian 30°W printable versions available .
• With the highest face count among regular polyhedra, the icosahedron was long a favorite for maps.
•  Buckminster Fuller (made famous by geodesic domes and other innovative engineering ideas) designed several polyhedral (like other of his creations, formally named Dymaxion™) maps, at first on a cuboctahedron (1943), later adopting the icosahedron. ...
• Perhaps the most globe-like of all five regular solids is the dodecahedron (its volume differs the least from that of a inscribed sphere; on the other hand, the icosahedron has the bigger volume/surface ratio, and its volume best approximates that of a circumscribed sphere); unfortunately its faces don't tile a plane so most faces in a fold-out would be connected by only one or two edges, causing too many gaps. ...

• This Java applet shows a real-time animated rotating icosahedron on a solid or image background. ...
• Size of the rotating icosahedron;.

• What in the Solar System Is a Planetary Icosahedron?.
• Students learn about the solar system and create an icosahedron representing a body in the solar system. ...
• Arrange students into eight groups, one for each of the available icosahedron maps, and tell them that each group will make icosahedrons of a planet or moon in our solar system. ...
• Explain to students that an icosahedron is a 20-sided polyhedron with each side made up of an equilateral triangle. In a planetary icosahedron, each face of the triangle displays a part of a (nearly spherical) planetary surface. ...
• Have each student cut out and assemble a planetary icosahedron. ...

• Stereo Icosahedron.
• This icosahedron is constructed as a stereopair, with the red image designed to be viewed with your left eye and the blue image with your right. ...

• Vibe Icosahedron QTVR all around.
• Enter the icosahedron. ...

• Only five Platonic solids exist: tetrahedron, hexahedron, octahedron, dodecahedron and icosahedron.
• The icosahedron is bounded by twenty equilateral triangles. ... The icosahedron corresponds to water.

• icosahedron .
• icosahedron : see polyhedron.
• More on icosahedron from Infoplease:.
• Related content from HighBeam Research on:icosahedron .

• by Keyword: Icosahedron .

• Icosahedron .
• Truncated icosahedron .

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