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

See also...
Gwynhafyr on Flickr
Albert Bridge on Geograph
Nick Harrison on Flickr
Nick Harrison on Flickr
Nick Harrison on Flickr
sgwarnog2010 on Flickr
sgwarnog2010 on Flickr