angle standard
21standard ruler — noun Any astronomical object of known diameter whose distance can then be calculated from the angle it subtends …
22standard instrument arrival — A designated IFR arrival route liking a significant point, normally on ATS route, with a point from which a published instrument approach procedure can be commenced (ICAO). When necessary or where an operational advantage is obtained, arrival… …
23Profile angle — The profile angle of a gear is the angle at a specified pitch point between a line tangent to a tooth surface and the line normal to the pitch surface (which is a radial line of a pitch circle). This definition is applicable to every type of gear …
24étalon d’angle — kampo etalonas statusas T sritis fizika atitikmenys: angl. angle standard vok. Winkelnormal, n rus. угловой эталон, m pranc. étalon angulaire, m; étalon d’angle, m …
25British Standard Whitworth — (BSW) is one of a number of imperial unit based screw thread standards which use the same bolt heads and nut hexagonal sizes, some others being British Standard Fine thread (BSF) and British Standard Cycle. These three are collectively called… …
26Grand angle — Objectif grand angle Objectif grand angle Canon 17 40 mm f/4 …
27Objectif grand angle — Convertisseur Grand angle 0,45x Besel Convertisseur grand angle attaché à un appareil photo …
28Weinberg angle — The Weinberg angle or weak mixing angle is a parameter in the Weinberg–Salam theory of the electroweak interaction, and is usually denoted as θW. It is the angle by which spontaneous symmetry breaking rotates the original W0 and B0 vector boson… …
29Tangent half-angle formula — In various applications of trigonometry, it is useful to rewrite the trigonometric functions (such as sine and cosine) in terms of rational functions of a new variable t . These identities are known collectively as the tangent half angle formulae …
30Wide-angle lens — In photography and cinematography, a wide angle lens is a lens whose focal length is substantially shorter than the focal length of a normal lens for the image size produced by the camera, whether this is dictated by the dimensions of the image… …
