|
This is a list of wave topics, by Wikipedia page. A wave crashing against the shore A wave is a disturbance that propagates. ...
Contents: Top - 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
0-9
In physics and astronomy, the 21 cm line is the name for a highly forbidden emission line of hydrogen. ...
The 4 oclock wave is a part of local lore in parts of Australia. ...
A In optics, an Abbe prism, named for its inventor, the German physicist Ernst Abbe, is a type of constant deviation dispersive prism similar to a Pellin_Broca prism. ...
An absorption spectrum is a diagram depicting the wavelengths of electromagnetic radiation absorbed by a material, usually a gas or a solute. ...
Categories: Optics | Science stubs ...
An Alfvén wave, named after Hannes Alfvén, is a type of magnetohydrodynamic wave. ...
An amphidromic point is a point within a tidal system where the tidal range is almost zero. ...
Amplitude is a nonnegative scalar measure of a waves magnitude of oscillation. ...
Amplitude modulation (AM) is a form of modulation in which the amplitude of a carrier wave is varied in direct proportion to that of a modulating signal. ...
Since the first publication of digital sound recordings listeners have disagreed over the respective sound quality of analog and digital sound. ...
Animal echolocation is the ability of some animals to locate objects by emitting sound waves and listening for the echo. ...
Phase difference is expressed in degrees from 0° to 360°, or in radians. ...
External links http://www. ...
An atmospheric wave is a periodic disturbance in the fields of atmospheric variables (like surface pressure or geopotential height, temperature, or wind velocity) which may either propagate (traveling wave) or not (stationary wave). ...
An atmospheric waveguide is an atmospheric flow feature that enhances the propagation of certain atmospheric waves. ...
The audience wave (also called a Mexican wave) is a sporting events, and sometimes in other large crowds. ...
B In physics, Babinets principle is a theorem concerning diffraction that states that the diffraction pattern from an opaque body is identical to that from a hole of the same size and shape except for the overall forward beam intensity. ...
A bandwidth limited pulse is a pulse of a wave that has the minimum possible duration for a given spectral bandwidth. ...
Beating is striking more than once, in violence, beating a drum, etc. ...
In quantum mechanics, the Berry phase is a phase acquired by quantum states when subjected to adiabatic processes, resulting from the geometrical properties of the parameter space of the Hamiltonian. ...
A Bloch wave or Bloch state is the wavefunction of a particle (usually, an electron) placed in a periodic potential. ...
Blue shift is the opposite of redshift, the latter being much more noted due to its importance to modern astronomy. ...
Brillouin scattering occurs when light in a medium (such as water or a crystal) interacts with density variations and changes its path. ...
A bullet bow shockwave is a physical and audible wave created in the air when a bullet only travels supersonically faster than the speed of sound. ...
An abstract business cycle The business cycle or economic cycle refers to the ups and downs seen somewhat simultaneously in most parts of an economy. ...
C A capillary wave is a wave travelling along a meniscus, whose dynamics are dominated by the effects of surface tension. ...
A carrier wave is a waveform (usually sinusoidal) that is modulated (modified) to represent the information to be transmitted. ...
For the characteristic sounds of birds, see bird song. ...
In electrodynamics, circular polarization of electromagnetic radiation is a polarization such that the tip of the electric field vector, at a fixed point in space, describes a circle as time progresses. ...
In physics, optics, and telecommunication, a waveguide is a structure that confines and guides a propagating electromagnetic wave. ...
Monochromatic waves of the same frequency are coherent with each other, and combine constructively if they are in phase with each other (example: several light beams originating from one laser, each with the same phase) Monochromatic waves which are not in phase with each other do not combine constructively. ...
In physics, coherence length is the propagation distance from a coherent source to a point where an electromagnetic wave maintains a specified degree of coherence. ...
Collimated light is light whose rays are parallel. ...
In quantum mechanics, the Compton effect, observed by Arthur Compton in 1923, is the increase in wavelength which occurs when X-ray photons with energies of around 0. ...
Continuous phase modulation (CPM) is a method for modulation of data commonly used in wireless modems. ...
A continuous wave (CW) is an electromagnetic wave of constant amplitude and frequency. ...
In telecommunication, the term cutoff wavelength has the following meanings: 1. ...
D Decollimation: In a beam with the minimum possible ray divergence or convergence, any mechanism by which rays are caused to diverge or converge from parallelism. ...
A delta wave is a large, slow brain wave associated with deep sleep. ...
In physics, optics, and telecommunication, a waveguide is a structure that confines and guides a propagating electromagnetic wave. ...
Diffraction is the apparent bending and spreading of waves when they meet an obstruction. ...
Direction finding (DF) refers to the establishment of the direction from which a received signal was transmitted. ...
In optics, dispersion is a phenomenon that causes the separation of a wave into spectral components with different frequencies, due to a dependence of the waves speed on its frequency. ...
The group velocity of a wave is the velocity with which the overall shape of the waves amplitude (known as the envelope of the wave) propagates through space. ...
Dominant wavelength example on the CIE color space The x marks the color in question. ...
Sound waves emanating from an ambulance moving to the right. ...
Doppler radar uses the Doppler effect to return additional information from a radar system. ...
E TV DX and FM DX are two terms, customarily grouped together, that mean distant reception of TV and FM radio stations, respectively. ...
In audio signal processing and acoustics, an echo (plural echoes) is a reflection of sound, arriving at the listener some time after the direct sound. ...
See: Animal echolocation: animals emitting sound waves and listening to the echo in order to locate objects or navigate. ...
Echo sounding is the use of sound pulses directed from the surface or from a submarine vertically down to measure the distance to the bottom by means of sound waves. ...
Electromagnetic radiation is a propagating wave in space with electric and magnetic components. ...
This article needs cleanup. ...
The Elliott wave theory is the basis of a technical analysis technique for predicting the behavior of the stock market, invented by R. N. Elliott in 1939. ...
In electrodynamics elliptical polarization is the polarization of electromagnetic radiation such that the tip of the electric field vector describes an ellipse in any fixed plane intersecting, and normal to, the direction of propagation. ...
In signal processing, the essential bandwidth is the portion of a signal spectrum in the frequency domain which contains most of the energy of the signal. ...
An evanescent wave is an electromagnetic wave that decays exponentially with distance. ...
An evanescent wave is an electromagnetic wave that decays exponentially with distance. ...
Extremely low frequency (ELF) is the band of radio frequencies from 3 to 300 Hz. ...
F In neuroscience, an F wave is the second of two voltage changes observed after electrical stimulation is applied to the skin surface above the distal region of a nerve. ...
Fraunhofer diffraction is diffraction of light through an aperture for small values of the Fresnel number, F<<1. ...
Freak waves, also known as rogue waves or monster waves, are relatively large and spontaneous ocean surface waves which can sink even medium-large ships. ...
Sine waves of various frequencies; the lower waves have higher frequencies than those above. ...
Frequency modulation (FM) is a form of modulation which represents information as variations in the instantaneous frequency of a carrier wave. ...
The fundamental tone often referred to simply as the fundamental, is the lowest frequency in a harmonic series. ...
G In optics, a Gaussian beam, named in honor of Carl Friedrich Gauss (rhymes with house), is a beam of light whose electric field intensity distribution is a Gaussian function. ...
See also list of optical topics. ...
See also list of optical topics. ...
In physics, a gravitational wave consists of energy transmitted in the form of a wave through the gravitational field of space-time. ...
In fluid dynamics, gravity waves are those generated in a fluid medium or on an interface (e. ...
Groundwave is the propagation of radio waves close to the surface of the Earth. ...
In physics, and in particular in optics, the study of waves and digital signal processing, the term group delay has the following meanings: 1. ...
The group velocity of a wave is the velocity with which the overall shape of the waves amplitude (known as the envelope of the wave) propagates through space. ...
H In acoustics and telecommunication, the harmonic of a wave is a component frequency of the signal that is an integer multiple of the fundamental frequency. ...
Holography (from the Greek, Όλος-holos whole + γÏαφή-graphe writing) is the science of producing holograms, an advanced form of photography that allows an image to be recorded in three dimensions. ...
Human echolocation is a technique used by some blind people to navigate within their environment. ...
Huygens principle (named for Dutch physicist Christiaan Huygens) is a method of analysis applied to problems of wave propagation. ...
I A periodic signal (usually electromagnetic in nature) is in phase if its period is synchronized with another signal. ...
Interferometry is the applied science of combining two or more input points of a particular data type, such as optical measurements, to form a greater picture based on the combination of the two sources. ...
Internal waves are gravity waves that oscillate due to the buoyancy force. ...
Inverse scattering, or the inverse scattering problem, is the problem of determining the characteristics of an object (its shape, internal constitution, etc. ...
K A Kelvin wave is a wave in the ocean or atmosphere that balances the Earths Coriolis force against a topographic boundary such as a coastline. ...
In electromagnetic wave propagation, the knife-edge effect is a redirection by diffraction of a portion of the incident radiation that strikes a well-defined obstacle such as a mountain range or the edge of a building. ...
L In physics, Landau damping, named after its discoverer, the eminent Russian physicist Lev Davidovich Landau, is the effect of damping (exponential decrease as a function of time) of longitudinal space charge waves in plasma or a similar environment. ...
Linear elasticity The linear theory of elasticity models the macroscopic mechanical properties of solids assuming small deformations. ...
In electrodynamics, linear polarization or plane polarization of electromagnetic radiation is a confinement of the electric field vector or magnetic field vector to a given plane along the direction of propagation. ...
Longitudinal waves, also referred to as compressional waves or pressure waves, are waves that have vibrations along or parallel to their direction of travel and can be a wave in which the motion of the medium is in the same direction to the motion of the wave. ...
Longwave radio frequencies are those below 500 kHz, which correspond to wavelengths longer than 600 meters. ...
M A Mach wave (aka Mach front, Mach stem, Mach stem effect) is the constructive interference between a wave or pulsefront and its reflection, especially at a low incidence angle. ...
Mediumwave radio transmissions (sometimes called Medium frequency or MF) are those between the frequencies of 300 kHz and 3000 kHz. ...
Megatsunami is a term used by the popular media to describe very large tsunamis. ...
This page is about the radiation; for the appliance, see microwave oven. ...
The microwave auditory effect was first reported by persons working in the vicinity of radar transponders. ...
Microwave oven A microwave oven is a kitchen appliance employing microwave radiation primarily to cook or heat food. ...
Microwaves, being high frequency electromagnetic radiation in the GHz range, are capable of exciting electrode-less gas discharges. ...
Microwave oven Microwaving is a method of cooking where food is bombarded by microwaves, usually within an appliance called a microwave oven which excite the water, fat and sugar molecules, thereby heating (cooking) both the outside and center of the food at the same time. ...
The Mie theory also called Lorenz-Mie theory is a complete mathematical-physical theory of the scattering of electromagnetic radiation by spherical particles, developed by Gustav Mie in 1908. ...
The millimeter wave cloud radar (MMCR) is a remote sensing instrument that transmits a radar pulse directly overhead to determine the tops and bottoms of clouds. ...
A monochromator is an optical device that transmits a mechanically selectable narrow band of wavelengths of light chosen from a wider range of wavelengths available at the input. ...
In telecommunication, multipath is the propagation phenomenon that results in radio signals reaching the receiving antenna by two or more paths. ...
O Categories: Physics stubs | Physical oceanography | Waves ...
An optical waveguide is a form of a dielectric waveguide, that is capable of guiding an optical signal. ...
An overtone is a sinusoidal component of a waveform, of greater frequency than its fundamental frequency. ...
P Waves with the same phase Waves with different phases The phase of a wave relates the position of a feature, typically a peak or a trough of the waveform, to that same feature in another part of the waveform (or, which amounts to the same, on a second waveform). ...
The phase difference between two signals of the same frequency can be thought of as a delay or advance in the zero crossing of one signal with respect to another. ...
A phase inversion is the introduction of a phase difference of 180° into a waveform. ...
Phase modulation (PM) is a form of modulation which represents information as variations in the instantaneous phase of a carrier wave. ...
The phase velocity of a wave is the rate at which the phase of the wave propagates in space. ...
A phonon is a quantized mode of vibration occurring in a rigid crystal lattice, such as the atomic lattice of a solid. ...
A pitch shifter is an audio processor that changes the pitch of an audio signal. ...
In the physics of wave propagation (especially electromagnetic waves), a plane wave (also spelled planewave) is a constant-frequency wave whose wavefronts (surfaces of constant amplitude and phase) are infinite parallel planes normal to the propagation direction. ...
This article treats polarization in electrodynamics. ...
A pressure wave in a fluid is a travelling disturbance consisting in a local change of pressure (hence the name). ...
Pulse-density modulation, or PDM, is a form of modulation used to represent an analog signal in the digital domain. ...
Q In medicine, specifically cardiology, the study of the heart, the QT interval is a measure of the time between the start of the Q wave and the end of the T wave in the hearts electrical cycle. ...
Quadrature, derived from Latin quadrare, is a term with various meanings: in astronomy, the line tangent to an objects orbit defines the objects quadrature. ...
Quadrature amplitude modulation (QAM) is a modulation scheme which conveys data by changing (modulating) the amplitude of two carrier waves. ...
Quantum optics is a field of research in physics, dealing with the application of quantum mechanics to phenomena involving light and its interactions with matter. ...
Quantum tunneling Quantum tunneling is the quantum-mechanical effect of transitioning through a classically-forbidden energy state. ...
R This long range radar antenna (approximately 40m (130ft) in diameter) rotates on a track to observe activities near the horizon. ...
Radar astronomy is a technique of imaging nearby astronomical objects. ...
Radar cross section (RCS) is a measurement of an objects radar reflectivity, usually in units of square meters. ...
U.S. Army soldier uses a radar gun to catch speeding violators at Tallil Air Base, Iraq. ...
Radio propagation is a term used to explain how radio waves behave when they are transmitted, or are propagated from one point on the Earth to another. ...
Radio frequency, or RF, refers to that portion of the electromagnetic spectrum in which electromagnetic waves can be generated by alternating current fed to an antenna. ...
Rayleigh scattering (named after Lord Rayleigh) is the scattering of light by particles smaller than the wavelength of the light. ...
In physics, the Rayleigh-Jeans Law, first proposed in the early 20th century, expresses the energy density of blackbody radiation of wavelength λ as where T is the temperature in kelvins, and k is Boltzmanns constant. ...
Introduction Redshift describes a change in the wavelength of light, in which the wavelength is longer than when it was emitted at the source. ...
The term reflection coefficient is used in physics and electrical engineering when wave propagation in a medium containing discontinuities is considered. ...
Reflection seismology is a branch of seismology that uses reflected seismic waves to produce images of the Earths subsurface. ...
In physics, the relativistic Doppler effect is change in the observed frequency of light due to the relative motion of source and observer when taking into account the Special Theory of Relativity. ...
Ring modulation is an audio effect performed by multiplying two audio signals, where one is typically a sine-wave or another simple waveform. ...
In quantum mechanics, the ring wave guide starts from the one dimensional, time independent Schrödinger equation: This must be solved under the circularity condition. ...
In physics, ripples are surface waves on a liquid with wavelengths so short that the liquids motion is governed almost entirely by surface tension forces. ...
A simple ripple tank This is a How-to about a Ripple tank. ...
Rossby (or planetary) waves are large-scale motions in the ocean or atmosphere whose restoring force is the variation in Coriolis effect with latitude. ...
S A sample refers to a value or set of values at a point in time and/or space. ...
The sawtooth wave is a kind of basic waveform. ...
A seiche (pronounced saysh) or an underwater wave is a standing wave in a body of water. ...
A seismic wave is a wave that travels through the Earth, often as the result of an earthquake or explosion. ...
Seismographs (in Greek seismos = earthquake and graphein = write) are used by seismologists to record seismic waves. ...
Seismology (from the Greek seismos = earthquake and logos = word) is the scientific study of earthquakes and the movement of waves through the Earth. ...
In optics, the Sellmeier equation is an empirical relationship between refractive index n and wavelength λ for a particular transparent medium. ...
In fluid dynamics, a shock wave is a nonlinear pressure wave. ...
A Grundig Shortwave receiver Shortwave radio operates between the frequencies of 3,000 kHz and 30 MHz (30,000 kHz) and came to be referred to as such in the early days of radio because the wavelengths associated with this frequency range were shorter than those commonly in use at...
In trigonometry, an ideal sine wave is a waveform whose graph is identical to the generalized sine function y = Asin[ω(x − α)] + C, where A is the amplitude, ω is the angular frequency (2π/P where P is the wavelength), α is the phase shift, and C is the...
Single-sideband modulation (SSB) is a refinement of the technique of amplitude modulation designed to be more efficient in its use of electrical power and bandwidth. ...
Skywave is the propagation of radio waves by reflection off the inner surface of the Earths highly charged ionosphere. ...
A soliton is a self-reinforcing solitary wave caused by nonlinear effects in the medium. ...
The F70 type frigates (here, La Motte-Picquet) are fitted with VDS (Variable Depth Sonar) type DUBV43 or DUBV43C tugged sonars Sonar (sound navigation and ranging) is a technique that uses sound propagation under water to navigate or to detect other watercraft. ...
The speed of sound c (from Latin celeritas, velocity) varies depending on the medium through which the sound waves pass. ...
A square wave is a kind of basic waveform. ...
A standing wave, also known as a stationary wave, is a wave that remains in a constant position. ...
In telecommunication, standing wave ratio (SWR) is the ratio of the amplitude of a partial standing wave at an antinode (maximum) to the amplitude at an adjacent node (minimum). ...
Super Low Frequency (SLF) is the frequency range between 30 Hertz and 300 Hertz. ...
In physics, a surface wave is a wave that is guided along the interface between two different media for a mechanical wave, or by a refractive index gradient for an electromagnetic wave. ...
A surface acoustic wave (SAW) is a kind of wave used in piezoelectric devices called SAW devices in electronics circuits. ...
For a long time, microwave plasma sources without magnetic field have not been considered suitable for the generation of high density plasmas. ...
Surfing outside Kaneohe Bay, Hawai‘i. ...
The surface of Venus, as imaged by the Magellan probe using SAR Synthetic aperture radar (SAR) is a form of radar in which sophisticated post-processing of radar data is used to produce a very narrow effective beam. ...
T The tidal bore in. ...
Tidal power is a means of electricity generation achieved by capturing the energy contained in moving water mass due to tides. ...
In oceanography, tidal resonance is a phenomenon perhaps best exemplified in the Bay of Fundy. ...
The tide is the regular rising and falling of the oceans surface caused by changes in gravitational forces external to the Earth. ...
Tired Light (a. ...
A transverse mode of a beam of electromagnetic radiation is a particular intensity pattern of radiation measured in a plane perpendicular (i. ...
A light wave is an example of a transverse wave. ...
A TWTA or travelling-wave tube amplifier is an electronic device used to produce high-power radiofrequency signals. ...
A triangle wave is a waveform named for its triangular shape. ...
In mathematics, the trigonometric functions are functions of an angle, important when studying triangles and modeling periodic phenomena. ...
The tsunami that struck Malé in the Maldives on December 26, 2004. ...
U Ultra Low Frequency (ULF) is the frequency range between 300 Hertz and 3000 Hertz. ...
Ultrasound is sound with a frequency greater than the upper limit of human hearing, approximately 20 kilohertz. ...
The ultraviolet catastrophe, also called the Rayleigh-Jeans catastrophe, was a prediction of early 20th century classical physics that an ideal black body at thermal equilibrium will emit radiation with infinite power. ...
A seiche (pronounced saysh) or an underwater wave is a standing wave in a body of water. ...
V Single-sideband modulation (SSB) is a refinement of the technique of amplitude modulation designed to be more efficient in its use of electrical power and bandwidth. ...
A vibration in a string is a wave. ...
In telecommunication, standing wave ratio (SWR) is the ratio of the amplitude of a partial standing wave at an antinode (maximum) to the amplitude at an adjacent node (minimum). ...
W A wake is the region of turbulence immediately to the rear of a solid body caused by the flow of air or water around the body. ...
The wave base is the maximum depth at which a water waves passage causes water motion. ...
Wave drag is an aerodynamics term that refers to a sudden and very powerful form of drag that appears on aircraft flying at high-subsonic speeds. ...
The wave equation is an important partial differential equation which generally describes all kinds of waves, such as sound waves, light waves and water waves. ...
In geometrical optics, a wave front (or crest of the wave) is defined as the locus of points having the same phase of vibration. ...
Wave impedance: At a point in an electromagnetic wave, the ratio of the electric field strength to the magnetic field strength. ...
The period of a wave is the time the full wave takes to pass a given point. ...
A wave vector is a vector that represents two properties of a wave: the magnitude of the vector represents wavenumber (inversely related to wavelength), and the vector points in the direction of wave propagation. ...
Waveform quite literally means the shape and form of a signal, such as a wave moving across the surface of water, or the vibration of a plucked string. ...
A waveform monitor is a special type of oscilloscope used in television applications. ...
In physics, optics, and telecommunication, a waveguide is a structure that confines and guides a propagating electromagnetic wave. ...
Wavenumber in most physical sciences is a wave property inversely related to wavelength, having units of inverse length. ...
Wavenumber in most physical sciences is a wave property inversely related to wavelength, having units of inverse length. ...
A Wavenumber-frequency diagram is a plot in of a field that has been subjected to a Fourier transform both in space and time. ...
A waverider is a hypersonic aircraft design that improves its supersonic lift-to-drag ratio by producing a lifting surface built out of the shock waves being generated by its own flight, a technique known as compression lift. ...
Wave velocity is a general concept, of various kinds of wave velocities, for an electromagnetic waves phase and speed concerning energy (and information) propagation. ...
In modern physics, duality most often refers to the paradigm underlying quantum mechanics, according to which matter or energy can exhibit properties associated with wave physics as well as classical particle mechanics. ...
In the most restricted usage in quantum mechanics, the wavefunction associated with a particle such as an electron, is a complex-valued square integrable function ψ defined over a portion of space normalized in such a way that In Max Borns probabilistic interpretation of the wavefunction, the amplitude squared...
In certain interpretations of quantum mechanics, wavefunction collapse is one of two processes by which quantum systems apparently evolve according to the laws of quantum mechanics. ...
The wavelength is the distance between repeating units of a wave pattern. ...
The original version of this article was based on FOLDOC, with permission In telecommunications wavelength division multiplexing (WDM) is a technology which multiplexes several optical carrier signals on a single optical fibre by using different wavelengths (colours) of laser light to carry different signals. ...
Wiens displacement law is a law of physics that states that there is an inverse relationship between the wavelength of the peak of the emission of a black body and its temperature. ...
X X band is a radio frequency range designation that denotes the operational frequency of a specific radar system. ...
Z - zero-dispersion slope
- zero-dispersion wavelength
- zone plate
|
Feeds |
Contact