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- Sphericon abstract "The sphericon is a solid that has a continuous developable surface with two congruent semi circular edges, and four vertices that define a square. It is a member of a special family of rollers that, while being rolled on a flat surface, bring all the points of their surface to contact with the surface they are rolling on. It was first introduced by the Israeli game and toy inventor David Haran Hirsch who patented it in Israel in 1980. It was given its name by Colin Roberts, who also explored it.It may be constructed from a bicone (a double cone) with an apex angel of 90 degrees, by splitting the bicone along a plane through both apexes, rotating one of the two halves by 90 degrees, and reattaching the two halves.Alternatively, the surface of a sphericon can be formed by cutting and gluing a paper template in the form of four circular sectors (with central angles π/√2) joined edge-to-edge [1].Ian Stewart of the University of Warwick and Tony Phillips of Stony Brook University have also investigated the sphericon, and it has helped the latter develop theories about mazes.".
- Sphericon thumbnail Sphericon-ani.gif?width=300.
- Sphericon wikiPageExternalLink sphericon2.htm.
- Sphericon wikiPageExternalLink Comparison_oloid_sphericon_3D.svg.
- Sphericon wikiPageExternalLink model.php?name_en=sphericon.
- Sphericon wikiPageExternalLink 4n.jpg.
- Sphericon wikiPageExternalLink series.htm.
- Sphericon wikiPageExternalLink watch?v=-vBE2GEsMPM.
- Sphericon wikiPageID "572813".
- Sphericon wikiPageLength "3087".
- Sphericon wikiPageOutDegree "21".
- Sphericon wikiPageRevisionID "702714065".
- Sphericon wikiPageWikiLink Apex_(geometry).
- Sphericon wikiPageWikiLink Bicone.
- Sphericon wikiPageWikiLink Category:Geometric_shapes.
- Sphericon wikiPageWikiLink Central_angle.
- Sphericon wikiPageWikiLink Circular_sector.
- Sphericon wikiPageWikiLink Cone.
- Sphericon wikiPageWikiLink Congruence_(geometry).
- Sphericon wikiPageWikiLink Developable_surface.
- Sphericon wikiPageWikiLink Ian_Stewart_(mathematician).
- Sphericon wikiPageWikiLink Maze.
- Sphericon wikiPageWikiLink Oloid.
- Sphericon wikiPageWikiLink Regular_polygon.
- Sphericon wikiPageWikiLink Rolling.
- Sphericon wikiPageWikiLink Semicircle.
- Sphericon wikiPageWikiLink Solid_geometry.
- Sphericon wikiPageWikiLink Square.
- Sphericon wikiPageWikiLink Stony_Brook_University.
- Sphericon wikiPageWikiLink University_of_Warwick.
- Sphericon wikiPageWikiLink Vertex_(geometry).
- Sphericon wikiPageWikiLink File:Esfericón.png.
- Sphericon wikiPageWikiLink File:Sphericon-ani.gif.
- Sphericon wikiPageWikiLinkText "Sphericon".
- Sphericon wikiPageWikiLinkText "sphericon".
- Sphericon wikiPageUsesTemplate Template:Reflist.
- Sphericon wikiPageUsesTemplate Template:Wiktionary.
- Sphericon subject Category:Geometric_shapes.
- Sphericon comment "The sphericon is a solid that has a continuous developable surface with two congruent semi circular edges, and four vertices that define a square. It is a member of a special family of rollers that, while being rolled on a flat surface, bring all the points of their surface to contact with the surface they are rolling on. It was first introduced by the Israeli game and toy inventor David Haran Hirsch who patented it in Israel in 1980.".
- Sphericon label "Sphericon".
- Sphericon sameAs Q7576723.
- Sphericon sameAs Esfericón.
- Sphericon sameAs m.02rd77.
- Sphericon sameAs Q7576723.
- Sphericon wasDerivedFrom Sphericon?oldid=702714065.
- Sphericon depiction Sphericon-ani.gif.
- Sphericon isPrimaryTopicOf Sphericon.