Key points are not available for this paper at this time.
Abstract * The work described here has been carried out under an Office of Naval Research Contract. Some of the results were obtained at Stanford University in the summer of 1951. This paper is essentially a lecture given at the Stanford Inspection Conference, August 20–22, 1951. Notes * The work described here has been carried out under an Office of Naval Research Contract. Some of the results were obtained at Stanford University in the summer of 1951. This paper is essentially a lecture given at the Stanford Inspection Conference, August 20–22, 1951.
Epstein et al. (1953) studied this question.