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chemical attack (warning) signal

См. также в других словарях:

  • warning system — ▪ military technology Introduction       in military science, any method used to detect the situation or intention of an enemy so that warning can be given.       Because military tactics from time immemorial have stressed the value of surprise… …   Universalium

  • Chemical weapons in World War I — A poison gas attack using gas cylinders in World War I. The use of chemical weapons in World War I ranged from disabling chemicals, such as tear gas and the severe mustard gas, to lethal agents like phosgene and chlorine. This chemical warfare… …   Wikipedia

  • Alarm signal — In the field of animal communication, an alarm signal is an antipredator adaptation referring to various signals emitted by social animals in response to danger. Many primates and birds have elaborate alarm calls for warning conspecifics of… …   Wikipedia

  • Civil defense siren — Federal Signal Thunderbolt 1003 Civil Defense siren. A civil defense siren (also referred to as an air raid siren, tornado siren, tsunami siren, fire siren/whistle, flood siren, weather siren, time/curfew siren, or other outdoor warning siren) is …   Wikipedia

  • mimicry — /mim ik ree/, n., pl. mimicries. 1. the act, practice, or art of mimicking. 2. Biol. the close external resemblance of an organism, the mimic, to some different organism, the model, such that the mimic benefits from the mistaken identity, as… …   Universalium

  • Civil defense in Israel — deals with a variety of military and terrorist threats to the civilian population, which have included concealed bombs such as suicide bombings and car bombs, projectiles such as missiles, rockets and mortars, and hijacking of aircraft, buses and …   Wikipedia

  • Royal Observer Corps — Ensign Active 1925–1996 Country …   Wikipedia

  • Mimicry — For other uses, see Mimic (disambiguation). Plate from Henry Walter Bates (1862) illustrating Batesian mimicry between Dismorphia species (top row, third row) and various Ithomiini (Nymphalidae, second row, bottom row) In …   Wikipedia

  • Civil defense — The international distinctive sign of civil defense, defined by the rules of International Humanitarian Law and to be used as a protective sign Civil defense, civil defence (see spelling differences) or civil protection is an effort to protect… …   Wikipedia

  • Plant defense against herbivory — Poison ivy produces urushiol to protect the plant from herbivores. In humans this chemical produces an allergic skin rash, known as urushiol induced contact dermatitis …   Wikipedia

  • Soviet support for Iraq during the Iran–Iraq war — During the Iran–Iraq War, the Soviet Union sold or gave the greatest amount of military equipment and supplies to Iraq, Fact|date=May 2008 as well as providing military advisers. Their public position, especially in the early phases of the war,… …   Wikipedia

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