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hydrogen cyanide
(Encyclopedia)hydrogen cyanide, HCN, colorless, volatile, and extremely poisonous chemical compound whose vapors have a bitter almond odor. It melts at −14℃ and boils at 26℃. It is miscible in all proportions...air traffic control
(Encyclopedia)air traffic control, the system by which airplanes are safely routed into and out of major airports. Air traffic control in the United States is centered in a number of regional control centers that r...Basov, Nikolai Gennadiyevich
(Encyclopedia)Basov, Nikolai Gennadiyevich nyĭkəlīˈ gĕnäˈdēyĕˌvĭch bäˈsəf [key], 1922–2001, Russian physicist and educator, b. Usman. He worked with A. M. Prokhorov to develop a technique for amplif...local area network
(Encyclopedia)local area network (LAN), a computer network dedicated to sharing data among several single-user workstations or personal computers, each of which is called a node. A LAN can have from two to several ...data communications
(Encyclopedia)data communications, application of telecommunications technology to the problem of transmitting data, especially to, from, or between computers. In popular usage, it is said that data communications ...Schawlow, Arthur Leonard
(Encyclopedia)Schawlow, Arthur Leonard shôˈlō [key], 1921–99, American physicist, b. Mount Vernon, N.Y., grad. Univ. of Toronto (Ph.D. 1949). Although his research focused on optics, in particular, lasers and ...instrument-landing system
(Encyclopedia)CE5 Instrument-landing system (ILS), the most common instrument-landing approach system, uses two beams to guide an airplane. instrument-landing system (ILS), ground-based radio system designed to...electronics
(Encyclopedia)electronics, science and technology based on and concerned with the controlled flow of electrons or other carriers of electric charge, especially in semiconductor devices. It is one of the principal b...antenna
(Encyclopedia)antenna ăntĕnˈə [key], in electronics, system of wires or other conductors used to transmit or receive radio or other electromagnetic waves (see radio); sometimes called an aerial. The idea of usi...blackbody
(Encyclopedia)blackbody, in physics, an ideal black substance that absorbs all and reflects none of the radiant energy falling on it. Lampblack, or powdered carbon, which reflects less than 2% of the radiation fall...Browse by Subject
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