I owe this information to my colleague, Professor Henry J. Steffens, of the University of Vermont, whose forthcoming book on Joule will document this statement thoroughly.
2.
In the two cases that I have studied in some depth, the works of Michael Faraday and André-Marie Ampère, there is strong evidence that both were influenced on a fundamental level by factors that had little immediate relationship to their scientific research.
3.
KuhnT. S., Black-body theory and the quantum discontinuity, 1894–1912 (Oxford, 1978).