canal-ray discharge tube

См. также в других словарях:

• 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

• Anode ray — Anode rays (or Canal rays) were observed in experiments by a German scientist, Eugen Goldstein, in 1886. Goldstein used a gas discharge tube which had a perforated cathode. A ray is produced in the holes (canals) in the cathode and travels in a… …   Wikipedia

• positive ray — noun : a stream of positively charged ions moving toward the cathode in a discharge tube * * * Physics. a stream of positive ions traveling from a metallic anode to the cathode in a gas discharge tube. Also called anode ray, canal ray. [1900 05] …   Useful english dictionary

• positive ray — Physics. a stream of positive ions traveling from a metallic anode to the cathode in a gas discharge tube. Also called anode ray, canal ray. [1900 05] * * * …   Universalium

• History of mass spectrometry — The history of mass spectrometry dates back more than one hundred years and has its roots in physical and chemical studies regarding the nature of matter. The study of gas discharges in the mid 19th century led to the discovery of anode and… …   Wikipedia

• Eugen Goldstein — Infobox Scientist name Gerald Reyes box width = image width =150px caption = Eugen Goldstein birth date = September 5, 1850 birth place = Gleiwitz, Upper Silesia (now Gliwice, Poland) death date = December 25, 1930 death place = residence =… …   Wikipedia

• luminescence — luminescent, adj. /looh meuh nes euhns/, n. 1. the emission of light not caused by incandescence and occurring at a temperature below that of incandescent bodies. 2. the light produced by such an emission. [1885 90; < L lumin (see LUMEN) +… …   Universalium

• Neon — This article is about the noble gas. For other uses, see Neon (disambiguation). fluorine ← neon → sodium …   Wikipedia

• Museum Boerhaave — Established 1931 [1] Location Lange Sint Agnietenstraat 10 Leiden, Netherlands …   Wikipedia

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• nervous system, human — ▪ anatomy Introduction       system that conducts stimuli from sensory receptors to the brain and spinal cord and that conducts impulses back to other parts of the body. As with other higher vertebrates, the human nervous system has two main… …   Universalium