William Crookes, English chemist and physicist (died 1919)

William Crookes

English chemist and physicist (1832–1919)

Sir William Crookes was an English chemist and physicist who attended the Royal College of Chemistry, now part of Imperial College London, and worked on spectroscopy. He was a pioneer of vacuum tubes, inventing the Crookes tube, which was made in 1875. This was a foundational…