- published: 11 May 2010
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Afternoon is the period between noon and early evening. The precise time at which it ends is subjective but often understood to be the time at which daylight begins to fade.
The term lacks a clear definition because it was in use long before precise timepieces became widespread. Hence, words and phrases that refer to general periods in the day were more practical.
The term should not be confused with the phrase "after noon", which is a translation of the Latin "post meridiem" (p.m.) as used in the 12-hour clock, meaning a time of day between noon and midnight.
In Australia and New Zealand, the word "arvo" is a slang term for afternoon.
Media related to Afternoon at Wikimedia Commons The Wiktionary entry for afternoon
In geometry, a cube is a three-dimensional solid object bounded by six square faces, facets or sides, with three meeting at each vertex. The cube can also be called a regular hexahedron and is one of the five Platonic solids. It is a special kind of square prism, of rectangular parallelepiped and of trigonal trapezohedron. The cube is dual to the octahedron. It has cubical symmetry (also called octahedral symmetry). It is special by being a cuboid and a rhombohedron.
The cube has four special orthogonal projections, centered, on a vertex, edges, face and normal to its vertex figure. The first and third correspond to the A2 and B2Coxeter planes.
For a cube centered at the origin, with edges parallel to the axes and with an edge length of 2, the Cartesian coordinates of the vertices are
while the interior consists of all points (x0, x1, x2) with −1 < xi < 1.
For a cube of edge length a,
As the volume of a cube is the third power of its sides a × a × a, third powers are called cubes, by analogy with squares and second powers.