Reynolds, Osborne, 1842-1912, Brightmore, Arthur William, 1864-, Moorby, William Henry, 1872- · Cambridge [Eng.] The University Press · leaf 108
the fundamental limit of no diffusion, and thereis no mean-motion, the normals to the surfaces at encounters are withincertain angles of directions fixed in space; while if the mean paths arewithout these limits, in however small a degree, the normals continuallychange their directions so that, if… … Fig. 1. uniform spherical grains, in regular symmetrical piling, the number of grainsany grain can come in contact with is twelve, so that if there is no strainin the medium and the mean paths are indefinitely small, as compared with 6—2 84 ON THE SUB-MECHANICS OF THE UNIVERSE. [90 the diameter,…
