In 1875, this scientist invented the radiometer. He had earlier founded the weekly journal Chemical News, and in 1861 isolated thallium.
In 1875, this scientist invented the radiometer. He had earlier founded the weekly journal Chemical News, and in 1861 isolated thallium. While working with his best-known invention, he noticed a light-free gap in the discharge near the cathode, which is called his eponymous "dark space." FTP, identify this English scientist whose high-vacuum discharge tubes were an important step in discovering X-rays and the electron.
In 1875, this scientist invented the radiometer. He had earlier founded the weekly journal Chemical News, and in 1861 isolated thallium.
William {Crookes}