powder pressure tank
61international relations — a branch of political science dealing with the relations between nations. [1970 75] * * * Study of the relations of states with each other and with international organizations and certain subnational entities (e.g., bureaucracies and political… …
62technology, history of — Introduction the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both… …
63Northover Projector — Members of the Home Guard using a Northover Projector, 1 July 1941 …
64Thermal power station — Republika Power Plant, a thermal power station in Pernik, Bulgaria …
65MythBusters (2011 season) — Country of origin Australia United States Broadcast Original channel Discovery Channel Original run …
66Hand grenade — M67 fragmentation grenade, a widely used modern hand grenade. A hand grenade is any small bomb that can be thrown by hand. Hand grenades are classified into three categories, explosive grenades, chemical and gas grenades.[1] Explosive grenades… …
67Canon de 75 modèle 1897 — Infobox Weapon is artillery=yes caption= Canon de 75 Modèle 1897 on display in Les Invalides. name= Canon de 75mm Modele 1897 type= Regimental artillery field gun origin= France service= 1897–1945 used by= France, United States, Poland, Belgium,… …
68India — /in dee euh/, n. 1. Hindi, Bharat. a republic in S Asia: a union comprising 25 states and 7 union territories; formerly a British colony; gained independence Aug. 15, 1947; became a republic within the Commonwealth of Nations Jan. 26, 1950.… …
69Iron — Fe redirects here. For other uses, see Fe (disambiguation). This article is about the chemical element. For other uses, see Iron (disambiguation). manganese …
70Oxygen mask — A plastic oxygen mask on an ER patient. An oxygen mask provides a method to transfer breathing oxygen gas from a storage tank to the lungs. Oxygen masks may cover the nose and mouth (oral nasal mask) or the entire face (full face mask). They may… …
