deflection sight

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• Sight (device) — Sights redirects here. For the rock band, see The Sights .A sight is an optical device used to assist aim by guiding the eye and aligning it with a weapon or other item to be pointed. Various forms of sights exist, such as iron sights, red dot… …   Wikipedia

• deflection — /di flek sheuhn/, n. 1. the act or state of deflecting or the state of being deflected. 2. amount of deviation. 3. the deviation of the indicator of an instrument from the position taken as zero. 4. Optics. deviation (def. 5a). 5. Mil. the angle… …   Universalium

• zero deflection — noun The adjustment of a sight, exactly parallel to the axis of the bore of the gun to which it is attached …   Wiktionary

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• Gravitational lensing formalism — In general relativity, a point mass deflects a light ray with impact parameter b by an angle hat{alpha} = frac{4GM}{c^2b}. A naïve application of Newtonian gravity can yield exactly half this value, where the light ray is assumed as a massed… …   Wikipedia

• 5"/38 caliber gun — Infobox Weapon name= 5 /38 Caliber Gun caption= Two Mk 30 single enclosed base ring mounts on a Fletcher class destroyer. origin= United States type= Deck Gun is artillery=yes service= 1934 used by= US Navy, US Coast Guard, Royal Navy, Danish… …   Wikipedia

• Weak gravitational lensing — While the presence of any mass bends the path of light passing near it, this effect rarely produces the giant arcs and multiple images associated with strong gravitational lensing. Most lines of sight in the universe are thoroughly in the weak… …   Wikipedia

• Ship gun fire-control system — Mk 37 Director c1944 with Mk 12 (rectangular antenna) and Mk 22 orange peel Ship gun fire control systems (GFCS) enable remote and automatic targeting of guns against ships, aircraft, and shore targets, with or without the aid of radar or optical …   Wikipedia

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• Sloped armour — is armour that is neither vertical nor horizontal and is typically mounted on tanks and other armoured fighting vehicles (AFVs). For a given normal to the surface of the armour, its plate thickness, increasing armour slope improves the armour s… …   Wikipedia