Close-packing of equal spheres

fcc arrangement seen on 4-fold axis direction

In geometry, close-packing of equal spheres is a dense arrangement of congruent spheres in an infinite, regular arrangement (or lattice). Carl Friedrich Gauss proved that the highest average density – that is, the greatest fraction of space occupied by spheres – that can be achieved by a lattice packing is

单词	Cubic close packing
释义	Cubic close packing 英语百科 Close-packing of equal spheres In geometry, close-packing of equal spheres is a dense arrangement of congruent spheres in an infinite, regular arrangement (or lattice). Carl Friedrich Gauss proved that the highest average density – that is, the greatest fraction of space occupied by spheres – that can be achieved by a lattice packing is
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Cubic close packing

Close-packing of equal spheres