26 relations: Coxeter group, Coxeter–Dynkin diagram, Facet (geometry), Geometry, Gosset–Elte figures, Harold Scott MacDonald Coxeter, Hyperplane, Rectified 6-simplexes, Rectified 7-simplexes, Schläfli symbol, Tetrahedron, Triangle, Uniform 2 k1 polytope, Uniform honeycomb, Vertex figure, Wythoff construction, 2 21 polytope, 2 31 polytope, 2 41 polytope, 5-cell, 5-orthoplex, 5-simplex, 6-simplex, 7-simplex, 8-demicube, 8-simplex.

## Christmas

Christmas is an annual festival commemorating the birth of Jesus Christ,Martindale, Cyril Charles.

New!!: 2 51 honeycomb and Christmas · See more »

## Christmas and holiday season

The Christmas season, also called the festive season, or the holiday season (mainly in the U.S. and Canada; often simply called the holidays),, is an annually recurring period recognized in many Western and Western-influenced countries that is generally considered to run from late November to early January.

New!!: 2 51 honeycomb and Christmas and holiday season · See more »

## Christmas Eve

Christmas Eve is the evening or entire day before Christmas Day, the festival commemorating the birth of Jesus.

New!!: 2 51 honeycomb and Christmas Eve · See more »

## Christmas traditions

Christmas traditions vary from country to country.

New!!: 2 51 honeycomb and Christmas traditions · See more »

## Coxeter group

In mathematics, a Coxeter group, named after H. S. M. Coxeter, is an abstract group that admits a formal description in terms of reflections (or kaleidoscopic mirrors).

New!!: 2 51 honeycomb and Coxeter group · See more »

## Coxeter–Dynkin diagram

In geometry, a Coxeter–Dynkin diagram (or Coxeter diagram, Coxeter graph) is a graph with numerically labeled edges (called branches) representing the spatial relations between a collection of mirrors (or reflecting hyperplanes).

New!!: 2 51 honeycomb and Coxeter–Dynkin diagram · See more »

## Facet (geometry)

In geometry, a facet is a feature of a polyhedron, polytope, or related geometric structure, generally of dimension one less than the structure itself.

New!!: 2 51 honeycomb and Facet (geometry) · See more »

## Geometry

Geometry (from the γεωμετρία; geo- "earth", -metron "measurement") is a branch of mathematics concerned with questions of shape, size, relative position of figures, and the properties of space.

New!!: 2 51 honeycomb and Geometry · See more »

## Gosset–Elte figures

In geometry, the Gosset–Elte figures, named by Coxeter after Thorold Gosset and E. L. Elte, are a group of uniform polytopes which are not regular, generated by a Wythoff construction with mirrors all related by order-2 and order-3 dihedral angles.

New!!: 2 51 honeycomb and Gosset–Elte figures · See more »

## Harold Scott MacDonald Coxeter

Harold Scott MacDonald "Donald" Coxeter, FRS, FRSC, (February 9, 1907 – March 31, 2003) was a British-born Canadian geometer.

New!!: 2 51 honeycomb and Harold Scott MacDonald Coxeter · See more »

## Hyperplane

In geometry, a hyperplane is a subspace whose dimension is one less than that of its ambient space.

New!!: 2 51 honeycomb and Hyperplane · See more »

## New Year

New Year is the time or day at which a new calendar year begins and the calendar's year count increments by one.

New!!: 2 51 honeycomb and New Year · See more »

## New Year's Day

New Year's Day, also called simply New Year's or New Year, is observed on January 1, the first day of the year on the modern Gregorian calendar as well as the Julian calendar.

New!!: 2 51 honeycomb and New Year's Day · See more »

## New Year's Eve

In the Gregorian calendar, New Year's Eve (also known as Old Year's Day or Saint Sylvester's Day in many countries), the last day of the year, is on 31 December which is the seventh day of Christmastide.

New!!: 2 51 honeycomb and New Year's Eve · See more »

## Rectified 6-simplexes

In six-dimensional geometry, a rectified 6-simplex is a convex uniform 6-polytope, being a rectification of the regular 6-simplex.

New!!: 2 51 honeycomb and Rectified 6-simplexes · See more »

## Rectified 7-simplexes

In seven-dimensional geometry, a rectified 7-simplex is a convex uniform 7-polytope, being a rectification of the regular 7-simplex.

New!!: 2 51 honeycomb and Rectified 7-simplexes · See more »

## Schläfli symbol

In geometry, the Schläfli symbol is a notation of the form that defines regular polytopes and tessellations.

New!!: 2 51 honeycomb and Schläfli symbol · See more »

## Tetrahedron

In geometry, a tetrahedron (plural: tetrahedra or tetrahedrons), also known as a triangular pyramid, is a polyhedron composed of four triangular faces, six straight edges, and four vertex corners.

New!!: 2 51 honeycomb and Tetrahedron · See more »

## Triangle

A triangle is a polygon with three edges and three vertices.

New!!: 2 51 honeycomb and Triangle · See more »

## Uniform 2 k1 polytope

In geometry, 2k1 polytope is a uniform polytope in n dimensions (n.

New!!: 2 51 honeycomb and Uniform 2 k1 polytope · See more »

## Uniform honeycomb

In geometry, a uniform honeycomb or uniform tessellation or infinite uniform polytope, is a vertex-transitive honeycomb made from uniform polytope facets.

New!!: 2 51 honeycomb and Uniform honeycomb · See more »

## Vertex figure

In geometry, a vertex figure, broadly speaking, is the figure exposed when a corner of a polyhedron or polytope is sliced off.

New!!: 2 51 honeycomb and Vertex figure · See more »

## Wythoff construction

In geometry, a Wythoff construction, named after mathematician Willem Abraham Wythoff, is a method for constructing a uniform polyhedron or plane tiling.

New!!: 2 51 honeycomb and Wythoff construction · See more »

## 2 21 polytope

In 6-dimensional geometry, the 221 polytope is a uniform 6-polytope, constructed within the symmetry of the E6 group.

New!!: 2 51 honeycomb and 2 21 polytope · See more »

## 2 31 polytope

In 7-dimensional geometry, 231 is a uniform polytope, constructed from the E7 group.

New!!: 2 51 honeycomb and 2 31 polytope · See more »

## 2 41 polytope

In 8-dimensional geometry, the 241 is a uniform 8-polytope, constructed within the symmetry of the E8 group.

New!!: 2 51 honeycomb and 2 41 polytope · See more »

## 2018

2018 has been designated as the third International Year of the Reef by the International Coral Reef Initiative.

New!!: 2 51 honeycomb and 2018 · See more »

## 2019

2019 (MMXIX) will be a common year starting on Tuesday of the Gregorian calendar, the 2019th year of the Common Era (CE) and Anno Domini (AD) designations, the 19th year of the 3rd millennium, the 19th year of the 21st century, and the 10th and last year of the 2010s decade.

New!!: 2 51 honeycomb and 2019 · See more »

## 5-cell

In geometry, the 5-cell is a four-dimensional object bounded by 5 tetrahedral cells.

New!!: 2 51 honeycomb and 5-cell · See more »

## 5-orthoplex

In five-dimensional geometry, a 5-orthoplex, or 5-cross polytope, is a five-dimensional polytope with 10 vertices, 40 edges, 80 triangle faces, 80 tetrahedron cells, 32 5-cell 4-faces.

New!!: 2 51 honeycomb and 5-orthoplex · See more »

## 5-simplex

In five-dimensional geometry, a 5-simplex is a self-dual regular 5-polytope.

New!!: 2 51 honeycomb and 5-simplex · See more »

## 6-simplex

In geometry, a 6-simplex is a self-dual regular 6-polytope.

New!!: 2 51 honeycomb and 6-simplex · See more »

## 7-simplex

In 7-dimensional geometry, a 7-simplex is a self-dual regular 7-polytope.

New!!: 2 51 honeycomb and 7-simplex · See more »

## 8-demicube

In geometry, a demiocteract or 8-demicube is a uniform 8-polytope, constructed from the 8-hypercube, octeract, with alternated vertices removed.

New!!: 2 51 honeycomb and 8-demicube · See more »

## 8-simplex

In geometry, an 8-simplex is a self-dual regular 8-polytope.

New!!: 2 51 honeycomb and 8-simplex · See more »

## Redirects here:

Gosset 2 51 honeycomb, Gosset 2 51 lattice.