Answers are grounded in this paper and cite their sources.
Walter B. Clarke, C. W. Trigg, J. Rosenbaum, D. L. MacKay, M. Kac, L. M. Kelly, H. T. R. Aude, E. C. Kennedy, Albert Farnell, Johannes Mahrenholz, Yudell Luke, V. Thebault, Annie Christensen, A. A. Aucoin, W. V. Parker, Nathan Altshiller-Court, W. C. Janes, Problem Department, National Mathematics Magazine, Vol. 14, No. 2 (Nov., 1939), pp. 105-115
No takes yet. Share an insight, caveat, or question.
Clarke et al. (1939) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: