54 relations: Aerial perspective, Aluminium oxide, American Journal of Physics, Amplitude, Angular resolution, Anomalous diffraction theory, Blue, Boltzmann constant, Bragg's law, Characteristic length, Coherence (physics), Color temperature, Critical opalescence, Cross section (physics), Dielectric, Diffuse sky radiation, Dipole, Discrete dipole approximation, Dispersion relation, Dynamic light scattering, Elastic scattering, Electromagnetic radiation, Fourth power, Gas, Intensity (physics), J. M. W. Turner, John William Strutt, 3rd Baron Rayleigh, Light, Light pollution, Marian Smoluchowski, Mie scattering, Mount Tambora, Multipath propagation, Optical fiber, Optical phenomena, Parameter, Parametric process (optics), Phase (waves), Plinian eruption, Polarizability, Proportionality (mathematics), Purkinje effect, Raman scattering, Rayleigh sky model, Red, Refractive index, Resonance, Rician fading, Rod cell, Sintering, ..., Stratosphere, Sunlight, Tyndall effect, Wavelength. Expand index (4 more) » « Shrink index
Aerial perspective or atmospheric perspective refers to the effect the atmosphere has on the appearance of an object as it is viewed from a distance.
Aluminium oxide (British English) or aluminum oxide (American English) is a chemical compound of aluminium and oxygen with the chemical formula 23.
The American Journal of Physics is a monthly, peer-reviewed scientific journal published by the American Association of Physics Teachers and the American Institute of Physics.
The amplitude of a periodic variable is a measure of its change over a single period (such as time or spatial period).
Angular resolution or spatial resolution describes the ability of any image-forming device such as an optical or radio telescope, a microscope, a camera, or an eye, to distinguish small details of an object, thereby making it a major determinant of image resolution.
Anomalous diffraction theory (also van de Hulst approximation, eikonal approximation, high energy approximation, soft particle approximation) is an approximation developed by Dutch astronomer van de Hulst describing light scattering for optically soft spheres.
Blue is one of the three primary colours of pigments in painting and traditional colour theory, as well as in the RGB colour model.
The Boltzmann constant, which is named after Ludwig Boltzmann, is a physical constant relating the average kinetic energy of particles in a gas with the temperature of the gas.
In physics, Bragg's law, or Wulff–Bragg's condition, a special case of Laue diffraction, gives the angles for coherent and incoherent scattering from a crystal lattice.
In physics, a characteristic length is an important dimension that defines the scale of a physical system.
In physics, two wave sources are perfectly coherent if they have a constant phase difference and the same frequency, and the same waveform.
The color temperature of a light source is the temperature of an ideal black-body radiator that radiates light of a color comparable to that of the light source.
Critical opalescence is a phenomenon which arises in the region of a continuous, or second-order, phase transition.
When two particles interact, their mutual cross section is the area transverse to their relative motion within which they must meet in order to scatter from each other.
A dielectric (or dielectric material) is an electrical insulator that can be polarized by an applied electric field.
Diffuse sky radiation is solar radiation reaching the Earth's surface after having been scattered from the direct solar beam by molecules or particulates in the atmosphere.
In electromagnetism, there are two kinds of dipoles.
The discrete dipole approximation (DDA) is a method for computing scattering of radiation by particles of arbitrary shape and by periodic structures.
In physical sciences and electrical engineering, dispersion relations describe the effect of dispersion in a medium on the properties of a wave traveling within that medium.
Dynamic light scattering (DLS) is a technique in physics that can be used to determine the size distribution profile of small particles in suspension or polymers in solution.
Elastic scattering is a form of particle scattering in scattering theory, nuclear physics and particle physics.
In physics, electromagnetic radiation (EM radiation or EMR) refers to the waves (or their quanta, photons) of the electromagnetic field, propagating (radiating) through space-time, carrying electromagnetic radiant energy.
In arithmetic and algebra, the fourth power of a number n is the result of multiplying four instances of n together.
Gas is one of the four fundamental states of matter (the others being solid, liquid, and plasma).
In physics, intensity is the power transferred per unit area, where the area is measured on the plane perpendicular to the direction of propagation of the energy.
Joseph Mallord William Turner (23 April 177519 December 1851), known as J. M. W. Turner and contemporarily as William Turner, was an English Romantic painter, printmaker and watercolourist, known for his expressive colourisation, imaginative landscapes and turbulent, often violent marine paintings.
John William Strutt, 3rd Baron Rayleigh, (12 November 1842 – 30 June 1919) was a physicist who, with William Ramsay, discovered argon, an achievement for which he earned the Nobel Prize for Physics in 1904.
Light is electromagnetic radiation within a certain portion of the electromagnetic spectrum.
Light pollution, also known as photopollution, is the presence of anthropogenic light in the night environment.
Marian Smoluchowski (28 May 1872 – 5 September 1917) was a Polish physicist who worked in the Polish territories of the Austro-Hungarian Empire.
The Mie solution to Maxwell's equations (also known as the Lorenz–Mie solution, the Lorenz–Mie–Debye solution or Mie scattering) describes the scattering of an electromagnetic plane wave by a homogeneous sphere.
Mount Tambora (or Tomboro) is an active stratovolcano on Sumbawa, one of the Lesser Sunda Islands of Indonesia.
In wireless telecommunications, multipath is the propagation phenomenon that results in radio signals reaching the receiving antenna by two or more paths.
An optical fiber or optical fibre is a flexible, transparent fiber made by drawing glass (silica) or plastic to a diameter slightly thicker than that of a human hair.
Optical phenomena are any observable events that result from the interaction of light and matter.
A parameter (from the Ancient Greek παρά, para: "beside", "subsidiary"; and μέτρον, metron: "measure"), generally, is any characteristic that can help in defining or classifying a particular system (meaning an event, project, object, situation, etc.). That is, a parameter is an element of a system that is useful, or critical, when identifying the system, or when evaluating its performance, status, condition, etc.
A parametric process is an optical process in which light interacts with matter in such a way as to leave the quantum state of the material unchanged.
Phase is the position of a point in time (an instant) on a waveform cycle.
Plinian eruptions or Vesuvian eruptions are volcanic eruptions marked by their similarity to the eruption of Mount Vesuvius in 79 AD, which destroyed the ancient Roman cities of Herculaneum and Pompeii.
Polarizability is the ability to form instantaneous dipoles.
In mathematics, two variables are proportional if there is always a constant ratio between them.
The Purkinje effect (sometimes called the Purkinje shift) is the tendency for the peak luminance sensitivity of the human eye to shift toward the blue end of the color spectrum at low illumination levels as part of dark adaptation.
Raman scattering or the Raman effect is the inelastic scattering of a photon by molecules which are excited to higher vibrational or rotational energy levels.
The Rayleigh sky model describes the observed polarization pattern of the daytime sky.
Red is the color at the end of the visible spectrum of light, next to orange and opposite violet.
In optics, the refractive index or index of refraction of a material is a dimensionless number that describes how light propagates through that medium.
In physics, resonance is a phenomenon in which a vibrating system or external force drives another system to oscillate with greater amplitude at specific frequencies.
Rician fading or Ricean fading is a stochastic model for radio propagation anomaly caused by partial cancellation of a radio signal by itself — the signal arrives at the receiver by several different paths (hence exhibiting multipath interference), and at least one of the paths is changing (lengthening or shortening).
Rod cells are photoreceptor cells in the retina of the eye that can function in less intense light than the other type of visual photoreceptor, cone cells.
Clinker nodules produced by sintering Sintering is the process of compacting and forming a solid mass of material by heat or pressure without melting it to the point of liquefaction.
The stratosphere is the second major layer of Earth's atmosphere, just above the troposphere, and below the mesosphere.
Sunlight is a portion of the electromagnetic radiation given off by the Sun, in particular infrared, visible, and ultraviolet light.
The Tyndall effect, also known as Willis–Tyndall scattering, is light scattering by particles in a colloids or in a very fine suspension.
In physics, the wavelength is the spatial period of a periodic wave—the distance over which the wave's shape repeats.