Answers are grounded in this paper and cite their sources.
(1926). LXXIII. A natural limit for the sensibility of galvanometers. The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science: Vol. 1, No. 4, pp. 827-834.
No takes yet. Share an insight, caveat, or question.
Gustaf Ising (1926) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: