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  2. Wave vector - Wikipedia

    en.wikipedia.org/wiki/Wave_vector

    In physics, a wave vector (or wavevector) is a vector used in describing a wave, with a typical unit being cycle per metre. It has a magnitude and direction. Its magnitude is the wavenumber of the wave (inversely proportional to the wavelength ), and its direction is perpendicular to the wavefront. In isotropic media, this is also the direction ...

  3. Wave equation - Wikipedia

    en.wikipedia.org/wiki/Wave_equation

    The (two-way) wave equation is a hyperbolic partial differential equation describing waves, including traveling and standing waves; the latter can be considered as linear superpositions of waves traveling in opposite directions. This article mostly focuses on the scalar wave equation describing waves in scalars by scalar functions u = u (x, y ...

  4. Wave function - Wikipedia

    en.wikipedia.org/wiki/Wave_function

    The wave function of an initially very localized free particle. In quantum physics, a wave function (or wavefunction) is a mathematical description of the quantum state of an isolated quantum system. The most common symbols for a wave function are the Greek letters ψ and Ψ (lower-case and capital psi, respectively).

  5. Wave power - Wikipedia

    en.wikipedia.org/wiki/Wave_power

    t. e. Wave power is the capture of energy of wind waves to do useful work – for example, electricity generation, water desalination, or pumping water. A machine that exploits wave power is a wave energy converter ( WEC ). Waves are generated primarily by wind passing over the sea's surface and also by tidal forces, temperature variations, and ...

  6. Star Destroyer - Wikipedia

    en.wikipedia.org/wiki/Star_Destroyer

    The largest and most powerful of these is the Executor, which first appeared in The Empire Strikes Back (1980) as the personal flagship of Darth Vader. [13] The first in a line of Executor-class Star Dreadnoughts, the ship is over 19,000 m (62,000 ft) in length, propelled by thirteen colossal engines and a Class 1 hyperdrive.

  7. Wave–particle duality - Wikipedia

    en.wikipedia.org/wiki/Wave–particle_duality

    Wave-particle duality is the concept in quantum mechanics that quantum entities exhibit particle or wave properties according to the experimental circumstances. [ 1 ] : 59 It expresses the inability of the classical concepts such as particle or wave to fully describe the behavior of quantum objects. [ 2 ] :

  8. Wavenumber - Wikipedia

    en.wikipedia.org/wiki/Wavenumber

    In the physical sciences, the wavenumber(or wave number), also known as repetency,[1]is the spatial frequencyof a wave, measured in cyclesper unit distance (ordinary wavenumber) or radiansper unit distance (angular wavenumber). [2][3][4]It is analogous to temporal frequency, which is defined as the number of wave cycles per unit time (ordinary ...

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