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41Nuclear powered icebreaker — A nuclear powered icebreaker is a purpose built ship for use in waters continuously covered with ice. Icebreakers are ships capable of cruising on ice covered water by breaking through the ice with their strong, heavy, steel bows. Nuclear powered …
42Caisson (engineering) — In geotechnical engineering, a caisson is a retaining, watertight structure used, for example, to work on the foundations of a bridge pier, for the construction of a concrete dam, or for the repair of ships. These are constructed such that the… …
43USS Spence (DD-512) — USS Spence (DD 512), a Fletcher class destroyer, was laid down on 18 May 1942 by the Bath Iron Works, Bath, Maine; launched on 27 October 1942; sponsored by Mrs. Eben Learned; and commissioned on 8 January 1943, Lieutenant Commander H. J.… …
44Kapitan Khlebnikov (icebreaker) — The Kapitan Khlebnikov ( ru. Капитан Хлебников) is a Russian (formerly Soviet) icebreaker. The vessel now operates as a cruise ship offering excursions to the Arctic and Antarctic. HistoryThe Kapitan Khlebnikov was completed in Finland in 1981 as …
45PZL Bielsko SZD-56 — SZD 56 Diana Role 15 Meter class sailplane National origin Poland Manufacturer PZL Bielsko, Diana Sailplanes Designer Bogumił Bereś, Krzysztof Kubryński First flight 29 November 1990 (Diana)[1] …
46Schempp-Hirth Discus — NOTOC Infobox Aircraft name=Discus caption=A Czech built Discus CS at Eindhoven, Netherlands. type=Standard class sailplane manufacturer=Schempp Hirth designer=Klaus Holighaus first flight= introduced= retired= status= primary user= more users=… …
47Duchesse Anne (trois-mâts carré) — Pour les articles homonymes, voir Duchesse Anne. 51° 02′ 15″ N 2° 22′ 20″ …
48Ton — Not to be confused with tonnage. For other uses, see Ton (disambiguation). The ton is a unit of measure. It has a long history and has acquired a number of meanings and uses over the years. It is used principally as a unit of weight, and as a… …
49Nerobergbahn — A car of the Nerobergbahn funicular …
50Quarantine — For other uses see Quarantine (disambiguation) Quarantine is voluntary or compulsory isolation, typically to contain the spread of something considered dangerous, often but not always disease. The word comes from the Italian (seventeenth century… …
