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Pre-sighted Artillery
A sight is an aiming device used to assist in visual perception, visually aligning ranged weapons, surveying instruments or Fire-control radar, optical illumination equipments with the intended target. Sights can be a simple set or system of physical markers that have to be aligned together with the target (such as iron sights on firearms), or optical instrument, optical devices that allow the user to see an optically enhanced — often magnification, magnified — target image aligned in the same focus (optics), focus with an aiming point (e.g. telescopic sights, reflector sights and holographic sights). There are also sights that actively project an illuminated point of aim (a.k.a. "hot spot") onto the target itself so it can be observed by, such as laser sight (firearms), laser sights and infrared illuminators on some night vision devices. Simple sights At its simplest, a sight typically has two components, front and rear aiming pieces that have to be lined up. Sights such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
US Navy 060314-N-4007G-049 A Canadian Sea Cadet Look Through The Sights Of A Machine Gun Mounted On An SH-60B Seahawk Helicopter Assigned To Helicopter Sea Combat Squadron Two One (HSC-21)
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, nine Minor Outlying Islands, and 326 Indian reservations. The United States is also in free association with three Pacific Island sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Republic of Palau. It is the world's third-largest country by both land and total area. It shares land borders with Canada to its north and with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the most populous country in the Americas and the third most populous in the world. The national capital of the United States is Washington, D.C. and its most populous city and principal financial center is New York City. Paleo-Amer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
