https://royalsocietypublishing.org/doi/10.1098/rsnr.1966.0014 https://royalsocietypublishing.org/doi/10.1098/rsnr.1966.001... My apologies, here is the article

https://royalsocietypublishing.org/doi/10.1098/rsnr.1966.0014 https://royalsocietypublishing.org/doi/10.1098/rsnr.1966.001... My apologies, here is the article and citation. And no, not the reciprocal Pythagorean theorem -- learning about Pythagoreanism is a real rabbit hole, highly recommended :) McGuire, J. E., & Rattansi, P. M. (1966). Newton and the ‘Pipes of Pan’. Notes and records of the Royal Society of London, 21(2), 108-143.