azimuth unit
81Spherical harmonics — In mathematics, the spherical harmonics are the angular portion of an orthogonal set of solutions to Laplace s equation represented in a system of spherical coordinates. Spherical harmonics are important in many theoretical and practical… …
82Rotation representation (mathematics) — In geometry a rotation representation expresses the orientation of an object (or coordinate frame) relative to a coordinate reference frame. This concept extends to classical mechanics where rotational (or angular) kinematics is the science of… …
83List of electronics topics — Alphabetization has been neglected in some parts of this article (the b section in particular). You can help by editing it. This is a list of communications, computers, electronic circuits, fiberoptics, microelectronics, medical electronics,… …
84Dynamic positioning — Offshore Support Vessel Toisa Perseus with, in the background, the fifth generation deepwater drillship Discoverer Enterprise, over the Thunder Horse Oil Field. Both are equipped with DP systems. Dynamic positioning (DP) is a computer controlled… …
85Cosmic distance ladder — * Light green boxes: Technique applicable to star forming galaxies. * Light blue boxes: Technique applicable to Population II galaxies. * Light Purple boxes: Geometric distance technique. * Light Red box: The planetary nebula luminosity function… …
868th/12th Medium Regiment, Royal Australian Artillery — Infobox Military Unit unit name=8th/12th Medium Artillery Regiment, Royal Australian Artillery caption=Badge of the Royal Australian Artillery country=Australia allegiance=Commonwealth of Australia type=Artillery branch=Army dates=1973 Present… …
87Liaison 11 — La liaison 11 est une liaison de données tactiques autorisant des échanges automatiques de données entre des unités de surface, aériennes ou sous marine. Ces échanges permettent à ces unités, de partager l information en temps réel. La liaison 11 …
88Gradient — In vector calculus, the gradient of a scalar field is a vector field which points in the direction of the greatest rate of increase of the scalar field, and whose magnitude is the greatest rate of change.A generalization of the gradient for… …
89Stokes' law — In 1851, George Gabriel Stokes derived an expression, now known as Stokes law, for the frictional force also called drag force exerted on spherical objects with very small Reynolds numbers (e.g., very small particles) in a continuous viscous… …
90Lambert azimuthal equal-area projection — The Lambert azimuthal equal area projection is a particular mapping from a sphere to a disk. It accurately represents area in all regions of the sphere, but it does not accurately represent angles. Intuitively, it gives a planar picture of the… …
