Sphere packing is the arrangement of spheres in a given space or volume in such a way that the spheres occupy the maximum possible volume without overlapping. It is a topic of interest in various fields such as mathematics, physics, and materials science. The most well-known packing configuration is the face-centered cubic (FCC) packing, which is one of the most efficient ways to pack spheres, achieving a maximum packing density of about 74%.
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