Sir William Crookes (1832-1919), English chemist and physicist, 1926
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Sir William Crookes (1832-1919), English chemist and physicist, 1926
Sir William Crookes (1832-1919), English chemist and physicist, 1926. In 1861, Crookes discovered a previously unknown element with a bright green emission line in its spectrum and named the element thallium. In 1895 he identified the first known sample of helium. He also invented the Crookes radiometer. From An Outline of Christianity, The Story of Our Civilisation, volume 4: Christianity and Modern Thought, edited by RG Parsons and AS Peake, published by the Waverley Book Club (London, 1926)
Media ID 14935226
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As Peake Chemist Element Inspecting Inspection Inventor Parsons Peake Physicist Rg Parsons Scientist Sir William
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