Horseshoe-shaped electromagnet used by James Joule, c.1840. This electromagnet was used by the scientist James Joule for experiments about energy. Joule was a Salford resident and the son of a brewer.

In the north choir aisle of Westminster Abbey is a white marble memorial to James Prescott Joule, physicist. The inscription reads: He was born in Salford near Manchester, a son of Benjamin Joule and ...