fire-damp explosion
31art conservation and restoration — Maintenance and preservation of works of art, their protection from future damage, deterioration, or neglect, and the repair or renovation of works that have deteriorated or been damaged. Research in art history has relied heavily on 20th and… …
32Life Sciences — ▪ 2009 Introduction Zoology In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …
33Royal Observer Corps — Ensign Active 1925–1996 Country …
34Business and Industry Review — ▪ 1999 Introduction Overview Annual Average Rates of Growth of Manufacturing Output, 1980 97, Table Pattern of Output, 1994 97, Table Index Numbers of Production, Employment, and Productivity in Manufacturing Industries, Table (For Annual… …
35Gunpowder — For other meanings, see gunpowder (disambiguation). Black powder for muzzleloading rifles and pistols in FFFG granulation size. Coin (diameter 24 mm) for comparison. Gunpowder, also known since in the late 19th century as black powder, was the… …
36PIAT — Infobox Weapon name=Projector, Infantry, Anti Tank caption PIAT at the Canadian War Museum origin=flagcountry|United Kingdom type=Anti tank weapon is ranged=Yes is bladed= is explosive=Yes is artillery= is vehicle= is missile= is UK=Yes… …
37Fart lighting — Fart lighting, (also called fart burning, blue darting, blue flame, blue angel, flatus ignition, and pyroflatulence) is the practice of setting fire to the gases produced by human flatulence, often producing a blue hue. Although there is little… …
38S-Plan — The S Plan or Sabotage Campaign or England Campaign was a campaign of bombing and sabotage against the civil, economic, and military infrastructure of Britain from 1939 to 1940. The campaign was conducted by members of the Irish Republican Army… …
39Diesel engine — Diesel engines in a museum Diesel generator on an oil tanker …
40RMS Lusitania — was a British luxury ocean liner owned by the Cunard Steamship Company and built by John Brown and Company of Clydebank, Scotland. Christened and launched on Thursday, 7 June 1906, Lusitania met a disastrous end as a casualty of the First World… …
