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19 godz. temu · In physics, the special theory of relativity, or special relativity for short, is a scientific theory of the relationship between space and time. In Albert Einstein 's 1905 treatment, the theory is presented as being based on just two postulates: [p 1] [1] [2] The laws of physics are invariant (identical) in all inertial frames of reference ...
19 godz. temu · The -sphere with the round metric is an embedded Riemannian submanifold of +.. Let (,) be a Riemannian manifold and let : be an immersed submanifold or an embedded submanifold of .The pullback of is a Riemannian metric on , and (,) is said to be a Riemannian submanifold of (,).. In the case where , the map : is given by () = and the metric is just the restriction of to vectors tangent along .
19 godz. temu · Applications of Bessel functions. Bessel's equation arises when finding separable solutions to Laplace's equation and the Helmholtz equation in cylindrical or spherical coordinates.Bessel functions are therefore especially important for many problems of wave propagation and static potentials. In solving problems in cylindrical coordinate systems, one obtains Bessel functions of integer order ...
19 godz. temu · Wind power is the use of wind energy to generate useful work. Historically, wind power was used by sails, windmills and windpumps, but today it is mostly used to generate electricity.This article deals only with wind power for electricity generation. Today, wind power is generated almost completely with wind turbines, generally grouped into wind farms and connected to the electrical grid.
19 godz. temu · Granada (/ ɡ r ə ˈ n ɑː d ə / grə-NAH-də; Spanish: [ɡɾaˈnaða] ⓘ, locally) is the capital city of the province of Granada, in the autonomous community of Andalusia, Spain.Granada is located at the foot of the Sierra Nevada mountains, at the confluence of four rivers, the Darro, the Genil, the Monachil and the Beiro. Ascribed to the Vega de Granada comarca, the city sits at an ...
19 godz. temu · Chiswick (/ ˈ tʃ ɪ z ɪ k / ⓘ CHIZ-ik) is a district in the London Borough of Hounslow, West London, England.It contains Hogarth's House, the former residence of the 18th-century English artist William Hogarth; Chiswick House, a neo-Palladian villa regarded as one of the finest in England; and Fuller's Brewery, London's largest and oldest brewery.In a meander of the River Thames used for ...
19 godz. temu · The Brooklyn Immersionists were a community of artists, musicians and writers that integrated themselves and their creations into an industrial area of Williamsburg, Brooklyn in the 1990s, helping to innovate an urban ecological culture. The movement, according to the art historian, Jonathan Fineberg, was devoted to "a richer, more dynamically ...
