closed-loop configuration
31Glossary of nautical terms — This is a glossary of nautical terms; some remain current, many date from the 17th 19th century. See also Wiktionary s nautical terms, Category:Nautical terms, and Nautical metaphors in English. Contents: A B C D E F G H I J K L M N O P Q R …
32Escalator — For the album by Sam Gopal, see Escalator (album). Escalators in a Copenhagen Metro station, Denmark, 2007 Escalator in action, 2011 An e …
33Free-mo — stands for free modular and is a relatively new modular standard in the hobby of model railroading.Free mo is a derivation of FREMO, a European modular standard. Free mo s emphasis is on flexibility in track design and prototypical scenery and… …
34Knot theory — A three dimensional depiction of a thickened trefoil knot, the simplest non trivial knot …
35Orion (spacecraft) — Infobox Spacecraft Name = Orion Caption = Orion logo designed by Michael Okuda Organization = NASA Major Contractors = Lockheed Martin Bus = Mission Type = Crew Exploration Vehicle Flyby Of = Satellite Of = Earth, Moon, Asteroid, Mars (possibly)… …
36Marshall hydrothermal recovery system — The Marshall Hydrothermal Recovery System is the first patented system designed to utilize underwater hydrothermal vents for energy, mining, and water desalination. It was designed by Bruce C. Marshall of California. Hydrothermal vents typically… …
37Radiator (engine cooling) — For other uses, see Radiator (disambiguation). A typical engine coolant radiator used in an automobile Radiators are used for cooling internal combustion engines, mainly in automobiles but also in piston engined aircraft, railway locomotives,… …
38Chambers Street (BMT Nassau Street Line) — Infobox NYCS name = Chambers Street bg color = #874F17 line = BMT Nassau Street Line service = Nassau north platforms = 3 island platforms, 2 side platforms (1 walled up) tracks = 4 borough = Manhattan transfer station = Brooklyn Bridge–City Hall …
39Bluetooth — This article is about the electronic protocol. For the medieval King of Denmark, see Harald I of Denmark. Bluetooth logo Bluetooth is a proprietary open wireless technology standard for exchanging data over short distances (using short wavelength …
40Compact Cassette — A TDK D C60 cassette, a common speech quality tape with a 60 minute playing time, in a housing similar to that of the original Compact Cassette specification …
