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121Feather — For other uses, see Feather (disambiguation). Feather variations Feathers are one of the epidermal growths that form the distinctive outer covering, or plumage, on birds and some theropod dinosaurs. They are considered the most complex… …
122Timpani — Infobox Instrument name=Timpani names=Kettle drum, Timp classification= *Percussion instrument *Membranophone range= related= *Kus *Naqareh *NakerTimpani (also known colloquially as kettledrums or kettle drums) are musical instruments in the… …
123Wind turbine — Offshore wind farm using 5MW turbines REpower 5M in the North Sea off Belgium This article discusses wind powered electrical generators. See windmill for wind powered machinery used to grind grain or pump water. A wind turbine is a device that… …
124Skeg — A skeg (or skag) is a sternward extension of the keel of boats and ships which have a rudder mounted on the centre line. In more recent years, the name has been used for a fin on a surfboard which improves directional stability and to a moveable… …
125Dragon boat — This article is about Dragon boats and racing. For the festivals and holidays associated with dragon boats, see Duanwu Festival. Dragon boat Traditional Chinese 龍舟 Simplified Chinese 龙舟 …
126Capital (architecture) — Ionic capital, from the temple of Athena Polias, Priene, Ionia, in a 19th century engraving In architecture the capital (from the Latin caput, head ) forms the topmost member of a column (or pilaster). It mediates between the column and the load… …
127Cave rescue — environments. Cave rescue borrows elements from firefighting, confined space rescue, rope rescue and mountaineering techniques but has also developed its own special techniques and skills for performing work in conditions that are almost always… …
128USS Triton (SSRN-586) — USS Triton (SSRN/SSN 586), a U.S. Navy nuclear powered radar picket submarine, was the first vessel to execute a submerged circumnavigation of the Earth, accomplishing this during her shakedown cruise in early 1960. She also has the distinction… …
