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Highly Toxic: a gas that has a LC 50 in air of 200 ppm or less. [2] NFPA 704: Materials that, under emergency conditions, can cause serious or permanent injury are given a Health Hazard rating of 3. Their acute inhalation toxicity corresponds to those vapors or gases having LC 50 values greater than 1,000 ppm but less than or equal to 3,000 ppm ...
Clock tower's courtyard and shore Panoramic view of Culzean Castle main building. The armoury contains a propeller from a plane flown by Leefe Robinson when he shot down a German airship north of London in 1916. To the north of the castle is a bay containing the Gas House, which provided town gas for the castle up until 1940
A water castle, sometimes water-castle, [a] is a castle where natural or artificial water is part of its defences. [2] [3] It can be entirely surrounded by water-filled moats (moated castle) or natural waterbodies such as island castles in a river or offshore. The term comes from European castle studies, mainly German Burgenkunde.
Although castle has not become a generic term for a manor house (like château in French and Schloss in German), many manor houses contain castle in their name while having few if any of the architectural characteristics, usually as their owners liked to maintain a link to the past and felt the term castle was a masculine expression of their ...
Cooper, Thomas Parsons. (1911) The History of the Castle of York, from its Foundation to the Current Day with an Account of the Building of Clifford's Tower. London: Elliot Stock. OCLC 4246355. Creighton, Oliver Hamilton. (2005) Castles and Landscapes: Power, Community and Fortification in Medieval England. London: Equinox. ISBN 978-1-904768-67-8.
Water castles in Switzerland (2 P) U. Water castles in the United Kingdom (6 P) Pages in category "Water castles" The following 36 pages are in this category, out of ...
Details of a threat to poison English water supplies have emerged in newly unsealed documents, which show British authorities took the plot seriously as it appeared technically feasible.
The Wawel Royal Castle (Polish pronunciation: ⓘ; Zamek Królewski na Wawelu) and the Wawel Hill on which it sits constitute the most historically and culturally significant site in Poland. A fortified residency on the Vistula River in Kraków , it was established on the orders of King Casimir III the Great [ 2 ] and enlarged over the ...