hexagonal close arrangement
1Close-packing of spheres — hcp and fcc close packing of spheres In geometry, close packing of spheres is a dense arrangement of equal spheres in an infinite, regular arrangement (or lattice). Carl Friedrich Gauss proved that the highest average density – that is, the… …
2Hexagonal compact — Empilement compact L empilement compact est la manière d agencer des sphères dans l espace afin d avoir la plus grande densité de sphères, sans que celles ci ne se recouvrent. C est un problème que l on se pose en général en géométrie euclidienne …
3Kepler conjecture — In mathematics, the Kepler conjecture is a conjecture about sphere packing in three dimensional Euclidean space. It says that no arrangement of equally sized spheres filling space has a greater average density than that of the cubic close packing …
4Crystal structure — In mineralogy and crystallography, crystal structure is a unique arrangement of atoms or molecules in a crystalline liquid or solid. A crystal structure is composed of a pattern, a set of atoms arranged in a particular way, and a lattice… …
5Sphere packing — In mathematics, sphere packing problems are problems concerning arrangements of non overlapping identical spheres which fill a space. Usually the space involved is three dimensional Euclidean space. However, sphere packing problems can be… …
6Empilement compact — L empilement compact est la manière d agencer des sphères dans l espace afin d avoir la plus grande densité de sphères, sans que celles ci ne se recouvrent. C est un problème que l on se pose en général en géométrie euclidienne dans l espace à… …
7Empilement Compact — L empilement compact est la manière d agencer des sphères dans l espace afin d avoir la plus grande densité de sphères, sans que celles ci ne se recouvrent. C est un problème que l on se pose en général en géométrie euclidienne dans l espace à… …
8Iddingsite — is an alteration of olivine that consists of a mixture of clay minerals, iron oxides and ferrihydrides. Iddingsite forms from the weathering of basalt in the presence of liquid water and can be described as a phenocryst meaning it has… …
9metallurgy — metallurgic, metallurgical, adj. metallurgically, adv. metallurgist /met l err jist/ or, esp. Brit., /meuh tal euhr jist/, n. /met l err jee/ or, esp. Brit., /meuh tal euhr jee/, n. 1. the technique or science of working or heating metals so as… …
10Lennard-Jones potential — Computational physics Numerical analysis  …
