archilibs, September 19, 2012September 20, 2019, Geometry, 0 circle a round plane figure whose boundary – the circumference – consists of points equidistant from a fixed point the centre. circle →

+ pentagon archilibs, October 12, 2012October 12, 2018, Geometry, 0 pentagon a plane figure with five straight sides and five angles…

+ Weaire-Phelan model archilibs, November 5, 2012February 15, 2019, Geometry, 0 Weaire-Phelan model the Weaire–Phelan structure is a complex 3-dimensional structure representing an idealised foam of equal-sized bubbles…

+ ellipse archilibs, January 5, 2013October 12, 2018, Geometry, 0 ellipse a curve in a plane surrounding two focal points such that the sum of the distances to the...

+ square archilibs, January 21, 2013October 12, 2018, Geometry, 0 square a flat shape with four sides of equal length and four angles of 90°

+ Archimedean spiral archilibs, December 30, 2012September 20, 2019, Geometry, 0 Archimedean spiral The Archimedean spiral, or arithmetic spiral, is a spiral named after the 3rd century BC Greek mathematician...

+ annulus archilibs, October 28, 2012September 20, 2019, Geometry, 0 annulus or little ring, is a ring-shaped object, a region bounded by two concentric circles… annulus →

+ Amman tiling archilibs, November 1, 2012August 12, 2019, Geometry, 0 Amman tiling is an aperiodic set of two tiles and a foursome of ‘golden rhombohedra’, which form aperiodic tilings...

+ tetrahedron archilibs, November 27, 2012October 12, 2018, Geometry, 0 tetrahedron in geometry, a tetrahedron, also known as a triangular pyramid, is a polyhedron composed of four triangular faces,...