In geometry, a tetrahedron (pl.: tetrahedra or tetrahedrons), also known as a triangular pyramid, is a polyhedron composed of four triangular faces, six...

solid. The dual of the triakis tetrahedron is the truncated tetrahedron. The triakis tetrahedron can be seen as a tetrahedron with a triangular pyramid added...

octahedron is the dual polyhedron of a cube. It is also a rectified tetrahedron, a square bipyramid in any of three orthogonal orientations, and a triangular...

In geometry, the truncated tetrahedron is an Archimedean solid. It has 4 regular hexagonal faces, 4 equilateral triangle faces, 12 vertices and 18 edges...

Tetrahedron Letters is a weekly international journal for rapid publication of full original research papers in the field of organic chemistry. According...

Tetrahedron is a weekly peer-reviewed scientific journal covering the field of organic chemistry. According to the Journal Citation Reports, Tetrahedron...

The Reuleaux tetrahedron is the intersection of four balls of radius s centered at the vertices of a regular tetrahedron with side length s. The spherical...

In geometry, the truncated triakis tetrahedron, or more precisely an order-6 truncated triakis tetrahedron, is a convex polyhedron with 16 faces: 4 sets...

orthocentric tetrahedron is a tetrahedron where all three pairs of opposite edges are perpendicular. It is also known as an orthogonal tetrahedron since orthogonal...

trigonometry of a tetrahedron explains the relationships between the lengths and various types of angles of a general tetrahedron. The following are...

A Heronian tetrahedron (also called a Heron tetrahedron or perfect pyramid) is a tetrahedron whose edge lengths, face areas and volume are all integers...

is no effective way to make that happen in an extended area. The fire tetrahedron represents the addition of the chemical chain reaction, to the three...

In geometry, a trirectangular tetrahedron is a tetrahedron where all three face angles at one vertex are right angles. That vertex is called the right...

overhead views of the tetrahedron with the previous layers removed. The first six layers are as follows: The layers of the tetrahedron have been deliberately...

In most silicates, silicon atom occupies the center of an idealized tetrahedron whose corners are four oxygen atoms, connected to it by single covalent...

sphenoeides 'wedgelike') is a tetrahedron whose four faces are congruent acute-angled triangles. It can also be described as a tetrahedron in which every two edges...

a single central tetrahedron, and the second stage, formed by adding four smaller tetrahedra to the faces of the central tetrahedron, is the stellated...

constructed from a regular tetrahedron by adding a fifth vertex one edge length distant from all the vertices of the tetrahedron. This cannot be done in...

Tetrahedron Peak is a mountain in British Columbia, Canada. One of the highest peaks on the Sunshine Coast, it rises to an elevation of 1739 metres (5705 ft)...

related activities. The Logos Foundation (and its concert hall, the Logos Tetrahedron) is based in Ghent, Belgium (Flanders region). Composers Godfried-Willem...

The Tetrahedron Prize for Creativity in Organic Chemistry or Bioorganic and Medicinal Chemistry is awarded annually by Elsevier, the publisher of Tetrahedron...

The Tetrahedron in Bottrop (German: Bottrop Tetraeder or officially Haldenereignis Emscherblick) is a walkable steel structure in the form of a tetrahedron...

hexahedron or hexakis tetrahedron as the dual of an omnitruncated tetrahedron, and as the barycentric subdivision of a tetrahedron. Cartesian coordinates...

marching cubes algorithm was protected by a software patent, marching tetrahedrons offered an alternative algorithm that did not require a patent license...

Other evidence suggests that he may have only been familiar with the tetrahedron, cube, and dodecahedron and that the discovery of the octahedron and...

shown dual polyhedra are dual to the canonical versions. The chamfered tetrahedron (or alternate truncated cube) is a convex polyhedron constructed: by...

ready to take off and land. Wind tetrahedrons always have their pointy ends pointing to the wind. Wind tees and tetrahedrons can swing freely and align themselves...

symmetry, and is called a snub octahedron, snub tetratetrahedron, snub tetrahedron, and pseudo-icosahedron. This can be seen as an alternated truncated...

can be progressively transformed into an icosahedron, octahedron, and tetrahedron by folding along the diagonals of its square sides. With Oh symmetry...

tetrahedron is one of the Johnson solids (J65). It is created by attaching a triangular cupola (J3) to one hexagonal face of a truncated tetrahedron....