Columbia Encyclopedia

Search results

420 results found

Komsomolsk

(Encyclopedia)Komsomolsk –ämo͝orˈ [key], Rus. Komsomolsk-na-Amure, city (1989 pop. 315,000), Khabarovsk Territory, S Russian Far East, on the Amur River. It is a manufacturing center producing steel, machinery...

stealth technology

(Encyclopedia)stealth technology, designs and materials engineered for the military purpose of avoiding detection by radar or any other electronic system. Stealth, or antidetection, technology is applied to vehicle...

nucleotide

(Encyclopedia)nucleotide no͞oˈklēətīdˌ, nyo͞oˈ– [key], organic substance that serves as a monomer in forming nucleic acids. Nucleotides consist of either a purine or a pyrimidine base, a ribose or deoxyri...

network

(Encyclopedia)network, in computing, two or more computers connected for the purpose of routing, managing, and storing rapidly changing data. A local area network (LAN), which is restricted by distances of up to on...

jet propulsion

(Encyclopedia)CE5 Types of jet engines: In the propeller-driven turbine a stream of high-velocity gases provides the power to drive the turbine and turn the propeller. In the jet-driven turbine the stream of gas...

guided missile

(Encyclopedia)guided missile, self-propelled, unmanned space or air vehicle carrying an explosive warhead. Its path can be adjusted during flight, either by automatic self-contained controls or remote human control...

direction finder

(Encyclopedia)direction finder, electronic device used to determine the position of a ship or aircraft. In a simple direction finder a radio receiver is equipped with a revolving directional antenna. The antenna re...

Hemet

(Encyclopedia)Hemet hĕmˈĭt [key], city (2020 pop. 89,833), Riverside co., S Calif., in the San Jacinto v...

Hillingdon

(Encyclopedia)Hillingdon, outer borough of Greater London, SE England. Industries include printing, motion-picture production, and the manufacture of aircraft, food p...

Newport, city, Wales

(Encyclopedia)Newport, Welsh Casnewydd, city and unitary authority (1991 pop. 129,900), 74 sq mi (191 sq km), SE Wales, on the Usk River. Lumber, tea, automobiles, electronics, semiconductors, and aircraft are made...

Browse by Subject