What is paking efficiency of tetrahydral arrangement
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In geometry, tetrahedron packing is the problem of arranging identical regular tetrahedra throughout three-dimensional space so as to fill the maximum possible fraction of space.

The currently densest known packing structure for regular tetrahedra is a double lattice of triangular bipyramidsand fills 85.63% of space
Currently, the best lower bound achieved on the optimal packing fraction of regular tetrahedra is 85.63%.[1] Tetrahedra do not tilespace,[2] and an upper bound below 100% (namely, 1 − (2.6...)·10−25) has been reported.[3]

The currently densest known packing structure for regular tetrahedra is a double lattice of triangular bipyramidsand fills 85.63% of space
Currently, the best lower bound achieved on the optimal packing fraction of regular tetrahedra is 85.63%.[1] Tetrahedra do not tilespace,[2] and an upper bound below 100% (namely, 1 − (2.6...)·10−25) has been reported.[3]
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In geometry, tetrahedron packing is the problem of arranging identical regular tetrahedra throughout three-dimensional space so as to fill the maximum possible fraction of space.

The currently densest known packing structure for regular tetrahedra is a double lattice of triangular bipyramidsand fills 85.63% of space
Currently, the best lower bound achieved on the optimal packing fraction of regular tetrahedra is 85.63%.[1] Tetrahedra do not tilespace,[2] and an upper bound below 100% (namely, 1 − (2.6...)·10−25) has been reported.[3]
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