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111Viet Cong and PAVN battle tactics — Soldier of a NLF/Viet Cong Main Force Unit. They shared common arms, procedures, tactics, organization and personnel with PAVN. Viet Cong and PAVN battle tactics comprised a flexible mix of guerrilla and conventional warfare battle tactics used… …
112Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… …
113undersea exploration — Introduction the investigation and description of the ocean waters and the seafloor and of the Earth beneath. Primary objectives and accomplishments Included in the scope of undersea exploration are the physical and chemical… …
114Cello — This article is about the stringed musical instrument. For other uses, see Cello (disambiguation). Cello Cello, front and side view String Other names Violoncello Hornbos …
115Soldering — For the song, see Soldering (song). For the product, see Solder. Desoldering a contact from a wire. Soldering is a process in which two or more metal items are joined together by melting and flowing a filler metal (solder) into the joint, the… …
116Electrical connector — Back of an audio amplifier features a variety of electrical connectors An electrical connector is an electro mechanical device for joining electrical circuits as an interface using a mechanical assembly. The connection may be temporary, as for… …
117Nuclear weapon design — The first nuclear weapons, though large, cumbersome and inefficient, provided the basic design building blocks of all future weapons. Here the Gadget device is prepared for the first nuclear test: Trinity. Nuclear weapon designs are physical,… …
118AC power plugs and sockets — See also: Industrial and multiphase power plugs and sockets Plugs and sockets may sometimes combine male and female contacts, but t …
119Telescopic sight — Scope redirects here. For other uses, see Scope (disambiguation). View through a 4x rifle scope. A telescopic sight, commonly called a scope, is a sighting device that is based on an optical refracting telescope. They are equipped with some form… …
120Spinnerbait — A Spinnerbait refers to any one of a family of fishing lures that get their name from one or more metal blades shaped so as to spin like a propeller when the lure is in motion, creating varying degrees of flash and vibration that mimics small… …
