converted steel
51Naval mine — Polish wz. 08/39 contact mine. The protuberances around the top of the mine, called Hertz horns, are part of the detonation mechanism …
52Hawker Hurricane — Hurricane Hurricane Mk I (R4118), which fought in the Battle of Britain Role Fighter …
53T-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… …
54Museum and historic ships of the Great Lakes — This is a list of museum ships and boats of the Great Lakes, North America, including surviving hulls, museum and/or historic ships at risk, other surviving historic hulls and interesting partial ships of note, etc. Contents 1 Museum ships and… …
55metallurgy — metallurgic, metallurgical, adj. metallurgically, adv. metallurgist /met l err jist/ or, esp. Brit., /meuh tal euhr jist/, n. /met l err jee/ or, esp. Brit., /meuh tal euhr jee/, n. 1. the technique or science of working or heating metals so as… …
56United Kingdom — a kingdom in NW Europe, consisting of Great Britain and Northern Ireland: formerly comprising Great Britain and Ireland 1801 1922. 58,610,182; 94,242 sq. mi. (244,100 sq. km). Cap.: London. Abbr.: U.K. Official name, United Kingdom of Great… …
57Europe, history of — Introduction history of European peoples and cultures from prehistoric times to the present. Europe is a more ambiguous term than most geographic expressions. Its etymology is doubtful, as is the physical extent of the area it designates.… …
58National Register of Historic Places listings in Detroit, Michigan — Location of Detroit in Michigan …
59Industrial history of the People's Republic of China — Main articles: Economy and economic history of the People s Republic of China. China s industrial sector has shown great progress since 1949, but in the late 1980s it remained undeveloped in many respects. Although the country manufactured… …
60de Havilland Mosquito — DH.98 Mosquito The Mosquito B Mk XVI ML963 of 571 Squadron this aircraft was lost on an operation to Berlin in April 1945 …
