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  2. How does a light-mill work? - Department of Mathematics

    In 1873, while investigating infrared radiation and the element thallium, the eminent Victorian experimenter Sir William Crookes developed a special kind of radiometer, an instrument for measuring radiant energy of heat and light. Crookes's Radiometer is today marketed as a conversation piece called a light-mill or solar engine.

  3. Crookes Tube: Cathode Rays - National MagLab

    Crookes Tube: Cathode Rays Created by Sir William Crookes during the late nineteenth century, this sealed glass tube was used to demonstrate the path travelled by cathode rays. When an electric current is applied to the tube, a patch of fluorescent light would appear on the walls of the tube due to the interaction of electrons with residual gas ...

  4. Biografía de William Crookes (Su vida, historia, bio resumida)

    Sir William Crookes Químico y físico británico Nació el 17 de junio de 1832 en Londres. Cursó estudios en el Colegio Real de Química. En el año 1859 crea la revista de divulgación Chemical News, y en 1864, es el editor del Quarterly Journal of Science.

  5. Spirit photography and the occult: Making the invisible ...

    Crookes was famously involved in the testing of medium Florence Cook, who seemed able to materialise the full body of a spirit known as ‘Katie King’ under trance conditions. Years later he would also give the photographer William Hope his seal of approval.

  6. William Crookes – Wikipedie

    William Crookes ( 17. června 1832, Londýn – 4. dubna 1919, Londýn) byl britský chemik a fyzik, člen Královské společnosti v Londýně, italské, švédské a francouzské Akademie věd . William Crookes se zabýval studiem elektrického výboje ze zředěných plynech, elektřinou a tlakem záření.

  7. Crookes tube - Wikiwand

    A Crookes tube (also Crookes–Hittorf tube) is an early experimental electrical discharge tube, with partial vacuum, invented by English physicist William Crookes and others around 1869-1875, in which cathode rays, streams of electrons, were discovered. A Crookes tube: light and dark.

  8. 3.1: Electricity and the Atom - Chemistry LibreTexts

    The cathode ray tube was first invented by Sir William Crookes. Experiments showed that the rays had mass. Thomson’s cathode ray tube showed that atoms contain small, negatively charged particles called electrons. Millikan discovered that there is a fundamental electric charge—the charge of an electron.

  9. Atom - Electrons, Protons, Neutrons | Britannica

    Atom - Electrons, Protons, Neutrons: During the 1880s and ’90s scientists searched cathode rays for the carrier of the electrical properties in matter. Their work culminated in the discovery by English physicist J.J. Thomson of the electron in 1897. The existence of the electron showed that the 2,000-year-old conception of the atom as a homogeneous particle was wrong and that in fact the ...

  10. ウィリアム・クルックス - Wikipediaウィリアム・クルッ...

    ウィリアム・クルックス. サー・ ウィリアム・クルックス (Sir William Crookes, 1832年 6月17日 - 1919年 4月4日 (86歳没))は、 イギリス の 化学者 、 物理学者 である。. タリウム の発見、 陰極線 の研究に業績を残している。.

  11. What did the Crookes tube do? -

    English chemist Sir William Crookes (1832 1919) invented the Crookes tube to study gases, which fascinated him. His work also paved the way for the revolutionary discovery of the electron and the invention of X-ray machines. The Crookes tube is a vacuum-sealed glass container capable of carrying electricity.