W. J. M. Rankine

Scottish mechanical engineer (1820–1872)

William John Macquorn Rankine (5 July 1820 – 24 December 1872) was a Scottish mathematician and physicist. He was a founding contributor, with Rudolf Clausius and William Thomson (Lord Kelvin), to the science of thermodynamics, particularly focusing on its First Law. He developed the Rankine scale, a Fahrenheit-based equivalent to the Celsius-based Kelvin scale of temperature.

From Wikipedia, under CC BY-SA. More on occurri.