Hertha Ayrton

Phoebe Sarah Hertha Ayrton was a British engineer, mathematician, physicist and inventor, and suffragette. Known in adult life as Hertha Ayrton, born Phoebe Sarah Marks, she was awarded the Hughes Medal by the Royal Society for her work on electric arcs and ripple marks in sand and water.

28 April 1854

Born on the same birth day (28 April): António de Oliveira Salazar • Bruno Kirby • Frederick I of Sweden • Hal Sutton • Jean Redpath • Nikki Grahame • Paul Guilfoyle • Penélope Cruz • Rowland Evans • T. John Lesinski • Terry Pratchett • Vic Sotto

Born in the same month (April 1854): April 13 • Charles Sumner Tainter • Henri La Fontaine • Henri Poincaré • Hugh Massie • Ludwig Levy • Martin Lipp • William Stang