In geometry, a flexible polyhedron is a polyhedral surface without any boundary edges, whose shape can be continuously changed while keeping the shapes...

In geometry, a polyhedron (pl.: polyhedra or polyhedrons; from Greek πολύ (poly-)  'many' and ἕδρον (-hedron)  'base, seat') is a three-dimensional figure...

polymer Flexible algebra, in non-associative algebras, for example alternative algebras Flexible polyhedron Flexible single master operation "Flexible", a...

polyhedron, after Steffen's polyhedron.p.16 If three tetrahedra are joined at two separate opposing edges and made into a single flexible polyhedron,...

In geometry, Steffen's polyhedron is a flexible polyhedron discovered (in 1978) by and named after Klaus Steffen [de]. It is based on the Bricard octahedron...

a member of a family of flexible polyhedra constructed by Raoul Bricard in 1897. The overall shape of one of these polyhedron may change in a continuous...

is a "shaky polyhedron", meaning that (like a flexible polyhedron) it is not infinitesimally rigid. Outlining the edges of this polyhedron with struts...

peak or (n−3)-face of the polyhedron Edge the ridge or (n−2)-face of the polyhedron Face the facet or (n−1)-face of the polyhedron Vertex the (n−4)-face of...

invariant is zero. The Dehn invariant of a self-intersection-free flexible polyhedron is invariant as it flexes. Dehn invariants are also an invariant...

In geometry, an octahedron (pl.: octahedra or octahedrons) is a polyhedron with eight faces. One special case is the regular octahedron, a Platonic solid...

Apeirohedron Bicupola Cupola Bifrustum Boerdijk–Coxeter helix Császár polyhedron Flexible polyhedron Gyroelongated square dipyramid Heronian tetrahedron Hexagonal...

down a valley to a local bottom. This method is also known as the flexible polyhedron method. This, however, tends to perform poorly against the method...

In geometry, a Schönhardt polyhedron is a polyhedron with the same combinatorial structure as a regular octahedron, but with dihedral angles that are non-convex...

A kaleidocycle or flextangle is a flexible polyhedron connecting six tetrahedra (or disphenoids) on opposite edges into a cycle. If the faces of the disphenoids...

is a strictly convex polyhedron whose faces are regular polygons. They are sometimes defined to exclude the uniform polyhedrons. There are ninety-two...

three-dimensional convex polyhedron constructed with rigid plates for its faces, connected by hinges along its edges, forms a rigid structure. Flexible polyhedra, non-convex...

model of a convex polyhedron by connecting together rigid plates for each of the polyhedron faces with flexible hinges along the polyhedron edges, then this...

triangular prism. Császár polyhedron – Toroidal polyhedron with 14 triangle faces Steffen's polyhedron – Flexible polyhedron with 14 triangle faces Sloane...

between the vertex and the center. One form of a non-uniform but flexible polyhedron, the Bricard octahedron, can be constructed as a bipyramid over an...

mathematician Moira Chas. Assembly map Double bubble conjecture Flexible polyhedron Formal manifold Loch Ness monster surface Normal invariant Ring lemma...

Connelly School of the Holy Child, Potomac, Maryland Connelly sphere, a flexible polyhedron in geometry Connellys Springs, North Carolina, a town in Burke County...

origami cannot be folded flat rigidly. The Bellows theorem says that a flexible polyhedron has constant volume when flexed rigidly. The napkin folding problem...

A cuboctahedron is a polyhedron with 8 triangular faces and 6 square faces. A cuboctahedron has 12 identical vertices, with 2 triangles and 2 squares meeting...

Conway polyhedron notation, invented by John Horton Conway and promoted by George W. Hart, is used to describe polyhedra based on a seed polyhedron modified...

Császár polyhedron – A nonconvex tetradecahedron of all triangle faces Steffen's polyhedron – A flexible tetradecahedron Permutohedron – A polyhedron that...

self-supporting, easy-to-use, yet flexible game system that you can twist and mold, tour the land of Hahl." Polyhedron (Issue 81 - Vol. 14, No. 3) Shadis...

Kh (1995-04-30). "On the problem of invariance of the volume of a flexible polyhedron". Russian Mathematical Surveys. 50 (2): 451–452. Bibcode:1995RuMaS...

hemispherical thin-shell structure (lattice-shell) based on a geodesic polyhedron. The rigid triangular elements of the dome distribute stress throughout...

quantities e-folding, exponential growth or decay Polygon folding, or polyhedron folding Amicus Therapeutics, NASDAQ stock trading symbol FOLD Book folding...

general number of dimensions. A polygon is a polytope in two dimensions, a polyhedron in three dimensions, and so on in higher dimensions (such as a 4-polytope...