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81Aircraft carrier — From bottom to top: Principe de Asturias, amphibious assault ship USS Wasp, USS Forrestal and light V/STOL carrier HMS Invincible, showing size differences of late 20th century carriers An aircraft …
82Rowing (sport) — All eight types of racing boats, six of which are part of the Olympic Games Rowing is a sport in which athletes race against each other on rivers, on lakes or on the ocean, depending upon the type of race and the discipline. The boats are… …
83Agriculture and Food Supplies — ▪ 2007 Introduction Bird flu reached Europe and Africa, and concerns over BSE continued to disrupt trade in beef. An international vault for seeds was under construction on an Arctic island. Stocks of important food fish species were reported… …
84Credit default swap — If the reference bond performs without default, the protection buyer pays quarterly payments to the seller until maturity …
85M4 Sherman variants — The following is an extensive catalogue of the variants and specific unique elements of each variant and/or design stage of the M4 Sherman tank. For a broader article on the history of the M4, see M4 Sherman.OverviewWhen the Sherman Tank was… …
86Modern United States Navy carrier air operations — Modern United States Navy aircraft carrier air operations include the operation of fixed wing and rotary aircraft on and around an aircraft carrier for performance of combat or non combat missions. Modern United States Navy aircraft carrier… …
87T-54/T-55 operators and variants — Infobox Weapon name= T 54/55 caption= US Army recognition poster origin= Soviet Union type= Main battle tank is vehicle= yes is UK= yes service= 1947–present used by= wars= designer= Morozov (T 54), OKB 520 (T 54A and later) design date= 1945… …
88BMP-1 variants — This is a complete list of variants and designations of the BMP 1 infantry fighting vehicle. It is sorted by country of origin. Variants Former USSRInfantry fighting vehicles* BMP (Ob yekt 764) Original main prototype of BMP 1 developed by the… …
89Schottky diode — The Schottky diode (named after German physicist Walter H. Schottky; also known as hot carrier diode) is a semiconductor diode with a low forward voltage drop and a very fast switching action.In the early days of wireless, cat s whisker detectors …
90Dragon 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 …
