artificial arc
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Artificial sunlight — is the use of a light source to simulate sunlight where the unique benefits of sunlight are needed, but where sufficient natural sunlight is not available or is not feasible. The concept has various applications including greenhouse lighting,… … Wikipedia
Artificial tangent — Tangent Tan gent, n. [L. tangens, entis, p. pr. of tangere to touch; akin to Gr. ? having seized: cf. F. tangente. Cf. {Attain}, {Contaminate}, {Contingent}, {Entire}, {Tact}, {Taste}, {Tax}, v. t.] (Geom.) A tangent line curve, or surface;… … The Collaborative International Dictionary of English
Artificial sines — Sine Sine, n. [LL. sinus a sine, L. sinus bosom, used in translating the Ar. jaib, properly, bosom, but probably read by mistake (the consonants being the same) for an original j[=i]ba sine, from Skr. j[=i]va bowstring, chord of an arc, sine.]… … The Collaborative International Dictionary of English
Artificial pacemaker — Cardiac resynchronization therapy and CRT (Cardiac Resynchronization Therapy) redirect here. For the device termed a CRT D, see Implanted cardiac resynchronization device. For other uses, see Pacemaker (disambiguation). A pacemaker, scale in… … Wikipedia
Arc lamp — Lamp Lamp (l[a^]mp), n. [F. lampe, L. lampas, adis, fr. Gr. ?, ?, torch, fr. ? to give light, to shine. Cf. {Lampad}, {Lantern}.] 1. A light producing vessel, device, instrument or apparatus; formerly referring especially to a vessel with a wick… … The Collaborative International Dictionary of English
Xenon arc lamp — A xenon arc lamp is an artificial light source. Powered by electricity, it uses ionized xenon gas to produce a bright white light that closely mimics natural daylight.Xenon arc lamps can be roughly divided into three categories: * Continuous… … Wikipedia
Kern arc — The Kern arc is the extremely rare atmospheric optical phenomenon related to the circumzenithal arc. It is a complete and faint circle around the zenith. The circle extends a partial circle of the circumzenithal arc.The Kern arc is named after H … Wikipedia
Tangent of an arc — Tangent Tan gent, n. [L. tangens, entis, p. pr. of tangere to touch; akin to Gr. ? having seized: cf. F. tangente. Cf. {Attain}, {Contaminate}, {Contingent}, {Entire}, {Tact}, {Taste}, {Tax}, v. t.] (Geom.) A tangent line curve, or surface;… … The Collaborative International Dictionary of English
USS Aeolus (ARC-3) — began service as USS Turandot (AKA 47),an Artemis class attack cargo ship built by the Walsh Kaiser Co., Inc. of Providence, Rhode Island.In the mid 1950s, she was converted into a cable repair ship to support the SOSUS program, and she performed … Wikipedia
Hipparcos — ▪ artificial satellite in full High Precision Parallax Collecting Satellite Earth orbiting satellite launched by the European Space Agency in 1989 that over the next four years measured the distances to more than 100,000 stars by direct… … Universalium
List of Astro Boy characters — This is a list of characters from the anime and manga series Astro Boy created by Osamu Tezuka. Contents 1 Major characters 2 Robots 3 Minor characters 4 … Wikipedia