Letter | Published:

Packing of Spheres

Naturevolume 193pages465466 (1962) | Download Citation



SCOTT1 has described experiments with equi-sized steel balls of 0.3175 cm. diameter in loose and in dense random stable packings, having volume packing densities of 0.60(1) and 0.63(7), corrected for wall and top–bottom effects. The specific gravity of steel is high, and this may have had an influence on the arrangement of the spheres, as the impact of the falling or rolling balls will have been rather high. Some experiments have been done with nylon spheres of comparable diameter, 0.287 ± 0.002 cm., and a specific gravity of 1.15(6) ± 0.02. These were a loan from Prof. H. Kramers of Delft.

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  1. Laboratory Royal Mills of Laan Bros., Wormerveer, Holland

    • R. RUTGERS


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