Stephen Butterworth

Stephen Butterworth (1885–1958) was a British physicist who invented the filter that bears his name, a class of electrical circuits that separates electrical signals of different frequencies. ^{Stephen Butterworth, English physicist and engineer (d. 1958)}

11 August 1885

Born on the same birth day (11 August): Carolyn Murphy • Charles Cecil • Chris Cummings • Cristian Tello • Erwin Chargaff • John Gorrie (director) • Joseph Schuster (composer) • Luis Olmo • Nikolaus von Schönberg • Patrick Joseph McGovern • Richard Scudamore • Sophie Okonedo • Steven Pokere • Ted à Beckett • Tomi Lahren • Viola Davis

Born in the same month (August 1885): August 15 • Dino Campana • DuBose Heyward • George de Hevesy • Grace Hutchins • Jean Cabannes • Juhan Simm • Jules Romains • Keith Murdoch • Nettie Palmer • Tedda Courtney • Vance Palmer • Édouard Fabre