plücker tube — ˈpli]kə(r) , lu̇] noun Usage: usually capitalized P Etymology: after Julius Plücker died 1868 German mathematician and physicist : a gas filled discharge tube with a narrowly constricted straight portion in which the intensified luminosity adapts … Useful english dictionary
Plucker tube — Geissler tube Geis sler tube (Elec.) A glass tube provided with platinum electrodes, and containing some gas under very low tension, which becomes luminous when an electrical discharge is passed through it; so called from the name of a noted… … The Collaborative International Dictionary of English
Tube de Crookes — Photo d un tube de Crookes. Les électrons circulent en ligne droite de la cathode, sur la gauche, mise en évidence par l ombre portée de la croix sur la paroi fluorescente, à droite. L anode est en bas. Un tube de Crookes est un des premiers… … Wikipédia en Français
Julius Plücker — Infobox Scientist name = Julius Plücker |300px image width = 300px caption = Julius Plücker birth date = birth date|1801|6|16|mf=y birth place = Elberfeld, Duchy of Berg death date = death date and age|1868|5|22|1801|6|16|mf=y death place = Bonn … Wikipedia
Julius Plücker — Naissance 16 juin 1801 Elberfeld (Saint Empire romain germanique) Décès 22 mai … Wikipédia en Français
Julius Plucker — Julius Plücker Julius Plücker. Julius Plücker (16 juin, 1801 – 22 mai, 1868) était un mathématicien et un physicien allemand. Il a obtenu des résultats fondamentaux en géométrie analytique et fut un pionnier dans les recherches sur l … Wikipédia en Français
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
Cold cathode — This article is about light sources and indicators. For cold cathode ion sources, see Ion source. CCFL redirects here. For other uses, see CCFL (disambiguation). Cold cathode fluorescent lamp A cold cathode is a cathode used within nixie tubes,… … Wikipedia
atom — /at euhm/, n. 1. Physics. a. the smallest component of an element having the chemical properties of the element, consisting of a nucleus containing combinations of neutrons and protons and one or more electrons bound to the nucleus by electrical… … Universalium
Heinrich Geißler — Infobox Scientist name = Heinrich Geißler box width = image width =150px caption = Heinrich Geißler birth date = May 26 1814 birth place = Igelshieb, Thuringia, Saxe Meiningen death date = January 24 1879 death place = residence = citizenship =… … Wikipedia