Silvanus P. (Silvanus Phillips) Thompson

Born in York, England, on June 19, 1851, Silvanus Phillips Thompson grew up in a Quaker family and was educated at Bootham School. He first taught there, then went on to lecture in physics at University College, Bristol, before becoming professor of physics at the City and Guilds Technical College in Finsbury, London. His career joined teaching, research, and public explanation in a way that made him widely respected in both science and engineering.

Thompson worked across electricity, magnetism, optics, and X-rays, and he was elected a Fellow of the Royal Society in 1891. He also played an important part in scientific institutions, including serving as the first president of what became the British Institute of Radiology. Alongside his technical work, he wrote on the history of science and produced studies of figures such as Michael Faraday.

As an author, he is especially remembered for Calculus Made Easy (1910), a book that became famous for its plain language and encouraging tone. That talent for making difficult subjects feel approachable has helped keep his writing alive long after his death in London on June 12, 1916.