
author
1847–1925
A Scottish physicist and mathematician, he helped turn electricity and magnetism into subjects students could measure, test, and really understand. He worked closely with Lord Kelvin and went on to become a respected professor and scientific writer in his own right.

by Andrew Gray
Born in Lochgelly, Fife, on July 2, 1847, he studied at the University of Glasgow and built an academic career in mathematics and physics. He served as an assistant to Lord Kelvin, a role that placed him close to some of the most important scientific work of the period.
He later became Professor of Physics at University College Bangor, and in time returned to Glasgow as Kelvin's successor. He was elected a Fellow of the Royal Society, reflecting the high regard in which his scientific work was held.
Gray is remembered not only for research but also for teaching and writing. His books and lectures helped make difficult ideas in electricity and magnetism clearer for students, which is a big part of why his work still draws interest today.