audio-frequency electromagnetic method
91Stethoscope — Modern stethoscope. The stethoscope (from Greek στηθοσκόπιο, from στήθος, stéthos chest and σκοπή, skopé examination) is an acoustic medical device for auscultation, or listening to the internal sounds of an animal body. It is often used to… …
92Caesium — xenon ← caesium → barium Rb ↑ Cs ↓ Fr …
93Continuous wave — Passband modulation v · d · e Analog modulation AM · …
94china — /chuy neuh/, n. 1. a translucent ceramic material, biscuit fired at a high temperature, its glaze fired at a low temperature. 2. any porcelain ware. 3. plates, cups, saucers, etc., collectively. 4. figurines made of porcelain or ceramic material …
95China — /chuy neuh/, n. 1. People s Republic of, a country in E Asia. 1,221,591,778; 3,691,502 sq. mi. (9,560,990 sq. km). Cap.: Beijing. 2. Republic of. Also called Nationalist China. a republic consisting mainly of the island of Taiwan off the SE coast …
96Regional implementations of DAB — The radio technology known as Digital Audio Broadcasting (DAB) is being operated in several regions worldwide, either in the form of full commercial services, or as feasibility studies. Along with the UK, we also find a growing user base in… …
97Edwin Howard Armstrong — Edwin H. Armstrong Developed and advanced the utility of FM technology. Born December 18, 1890(1890 12 18) New York, New York U.S …
98ATSC Standards — document a digital television format that will have replaced the analog NTSC television system [ [http://home.businesswire.com/portal/site/home/index.jsp?ndmViewId=news view ndmConfigId=1000001 newsId=20071017005469 newsLang=en Major retailer… …
99railroad — /rayl rohd /, n. 1. a permanent road laid with rails, commonly in one or more pairs of continuous lines forming a track or tracks, on which locomotives and cars are run for the transportation of passengers, freight, and mail. 2. an entire system… …
100DNA — For a non technical introduction to the topic, see Introduction to genetics. For other uses, see DNA (disambiguation). The structure of the DNA double helix. The atoms in the structure are colour coded by element and the detailed structure of two …
