- Crookes glass
- Crookes glass [krʊks] s TECH Crookesglas n (ein Filterglas)
English-german dictionary. 2013.
Crookes glass
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crookes glass — noun Usage: usually capitalized C Etymology: after Sir Wm. Crookes : one of several types of glass designed to diminish the transmission of ultraviolet rays * * * Crookes glass /krŭks gläs/ noun A type of glass that inhibits the passage of… … Useful english dictionary
Crookes , Sir William — (1832–1919) British chemist and physicist Crookes studied at the Royal College of Chemistry in his native city of London, under August von Hofmann (1848). After working at the Radcliffe Observatory, Oxford, and the Chester College of Science, he… … Scientists
Crookes tube — noun the original gas discharge cathode ray tube • Hypernyms: ↑cathode ray tube, ↑CRT * * * noun Usage: usually capitalized C Etymology: after Sir Wm. Crookes : a vacuum tube evacuated to a pressure of about .04 mm of mercury for demonstrating… … Useful english dictionary
Crookes lens — /krʊks ˈlɛnz/ (say krooks lenz) noun a type of lens made from glass (Crookes glass) containing cerium, used in sunglasses because it lowers the transmission of ultraviolet radiation. {See Crookes dark space} …
Crookes radiometer — The Crookes radiometer, also known as the light mill, consists of an airtight glass bulb, containing a partial vacuum. Inside are a set of vanes which are mounted on a spindle. The vanes rotate when exposed to light, with faster rotation for more … Wikipedia
Crookes Peak — (66°14′S 65°18′W / 66.233°S 65.3°W / 66.233; 65.3) is a peak at the east side of Widmark Ice Piedmont, midway between Stair Hill and Rugg Peak on the west coast of Graham Land. Charted by the … Wikipedia
Crookes tube — A Crookes tube. The electrons travel in straight lines from the cathode on the left, shown by the shadow cast by the cross on the fluorescence on the righthand wall. The anode is at the bottom. A Crookes tube is an early experimental electrical… … Wikipedia
glass — A transparent substance composed of silica and oxides of various bases. [A.S. glaes] cover g. a thin g. disk or plate covering an object examined under the microscope. SYN: coverslip. Crookes g. a spectacle lens combined with … Medical dictionary
Crookes — Sir William, British physicist and chemist, 1832–1919; winner of the Nobel Prize in chemistry in 1907. See C. glass, C. Hittorf tube … Medical dictionary
Crookes lens — a lens made from glass rendered opaque to ultraviolet and infrared rays but transparent to visible light … Medical dictionary
X-ray — [ 22 December 1895 and presented to Professor Ludwig Zehnder of the Physik Institut, University of Freiburg, on 1 January 1896. The dark oval on the third finger is a shadow produced by her ring. [cite book last = Kevles first =Bettyann Holtzmann … Wikipedia
