(Encyclopedia) Roentgen or Röntgen, Wilhelm ConradRoentgen or Röntgen, Wilhelm Conradboth: rĕntˈgĭn, rŭntˈ–, Ger. vĭlˈhĕlm kônˈrät röntˈgən [key], 1845–1923, German physicist. His notable research in…
(Encyclopedia) CAT scanCAT scankăt [key] [computerized axial tomography], X-ray technique that allows relatively safe, painless, and rapid diagnosis in previously inaccessible areas of the body; also…
(Encyclopedia) Bragg, Sir William Lawrence, 1890–1971, English physicist, b. Adelaide, Australia, educated in Australia and at Trinity College, Cambridge; son of W. H. Bragg. He was professor of…
(Encyclopedia) Hodgkin, Dorothy Mary Crowfoot, 1910–94, English chemist and X-ray crystallographer, b. Egypt. She received the 1964 Nobel Prize in chemistry for determining the structure of…
(Encyclopedia)
CE5
Image formation by curved mirrors and lenses
reflection, return of a wave from a surface that it strikes into the medium through which it has traveled. The general principles…
(Encyclopedia) Bragg, Sir William Henry, 1862–1942, English physicist, educated at King William's College, Isle of Man, and Trinity College, Cambridge. He served on the faculties of the Univ. of…
(Encyclopedia) Nicol prismNicol prismnĭkˈəl [key], optical device invented (1828) by William Nicol of Edinburgh. It consists essentially of a crystal of calcite, or Iceland spar, that is cut at an…
(Encyclopedia) Orbiting Solar Observatory (OSO), series of eight orbiting observatories (see observatory, orbiting) launched between 1962 and 1971 by the National Aeronautics and Space Administration…
ELECTROMAGNETIC WAVESCOMPTON GAMMA RAY OBSERVATORYCHANDRA X-RAY OBSERVATORYSOHO’S SUNWATCHSPITZER OBSERVATORYHUBBLE SPACE TELESCOPEFIND OUT MOREHigh above the Earth’s atmosphere, space…
