William Thomson and James Prescott Joule blue plaque

This blue commemorative plaque records: James Prescott Joule and William Thomson, (later Lord Kelvin) discovered the Joule-Thomson Effect, on which mechanical refrigeration is based in this house in 1852 Recorded plaque organisation: Manchester Literary and Philosophical Society, University of Salford.

James Prescott Joule was a physicist who made significant contributions to thermodynamics, including his work with William Thomson (Lord Kelvin) on the Joule-Thomson effect, foundational for mechanical refrigeration. William Thomson, later known as Lord Kelvin, was a mathematical physicist and engineer whose work included the development of the absolute temperature scale and collaboration with Joule on the Joule-Thomson effect, crucial for advancements in thermodynamics and refrigeration technology.