thales electron devices
21Wanderfeldröhre — In einer Wanderfeldröhre (englisch Travelling Wave Tube, Abkürzung TWT) werden elektrische Signale verstärkt, indem freie Elektronen einen Teil ihrer Bewegungsenergie abgeben und dadurch das elektrische Signal verstärken. Um das zu ermöglichen… …
22Ulm — Pour les articles homonymes, voir Ulm (homonymie). Ulm …
23TED — Tenders Electronic Daily (Business » General) **** Technology Entertainment Design (Community » Media) ** Transient Enhanced Diffusion (Academic & Science » Electronics) ** Turtle Excluder Device (Academic & Science » Ocean Science) ** Turtle… …
24Elektronenröhre — Eine Elektronenröhre ist ein elektronisches Bauelement, das aus einem evakuierten oder gasgefüllten Kolben aus Glas, Stahl oder Keramik besteht, in den mehrere Elektroden, mindestens eine beheizte Kathode und eine Anode, eingelassen und von außen …
25Nobel Prizes — ▪ 2009 Introduction Prize for Peace The 2008 Nobel Prize for Peace was awarded to Martti Ahtisaari, former president (1994–2000) of Finland, for his work over more than 30 years in settling international disputes, many involving ethnic,… …
26Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …
27chemistry — /kem euh stree/, n., pl. chemistries. 1. the science that deals with the composition and properties of substances and various elementary forms of matter. Cf. element (def. 2). 2. chemical properties, reactions, phenomena, etc.: the chemistry of… …
28Electricity — (from the Greek word ήλεκτρον, (elektron), meaning amber, and finally from New Latin ēlectricus , amber like ) is a general term that encompasses a variety of phenomena resulting from the presence and flow of electric charge. These include many… …
29electromagnetism — /i lek troh mag ni tiz euhm/, n. 1. the phenomena associated with electric and magnetic fields and their interactions with each other and with electric charges and currents. 2. Also, electromagnetics. the science that deals with these phenomena.… …
30aerospace industry — Introduction assemblage of manufacturing concerns that deal with vehicular flight within and beyond the Earth s atmosphere. (The term aerospace is derived from the words aeronautics and spaceflight.) The aerospace industry is engaged in the …
