diameter in loose and in dense random stable packings, having volume packing densities of 0. ... have had an influence on the arrangement of the spheres, as the impact of the falling or rolling ...

SOME features of the radial distribution of randomly arranged equal spheres in close packing have been shown to agree well with the radial distribution found by neutron and X-ray diffraction for ...

You don’t want these spheres to overlap — otherwise, a received message might be interpreted in more than one way. But the spheres shouldn’t be too far apart, either. Packing the spheres tightly means ...