Charles Glover Barkla (1877–1944)
Born 1877 CE, died 1944 CE.
Charles Glover Barkla (7 June 1877 – 23 October 1944) was a British physicist who received the Nobel Prize in Physics in 1917 for his discovery of characteristic X-rays.
Text from the Wikipedia article Charles_Barkla, licensed CC BY-SA 4.0.