refraction of waves

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• Refraction — For the property of metals, see refraction (metallurgy). For the magic effect, see David Penn (magician). For the refraction in atmosphere, see Atmospheric refraction. Light on air–plexi surface in this experiment mainly undergoes refraction… …   Wikipedia

• Refraction microtremor — (ReMi) is a surface performed geophysical survey developed by Dr. John Louie (and others) based on previously existing principles of evaluating surface waves and in particular Rayleigh waves. Since Rayleigh waves are dispersive, the propagating… …   Wikipedia

• refraction — refractional, adj. /ri frak sheuhn/, n. 1. Physics. the change of direction of a ray of light, sound, heat, or the like, in passing obliquely from one medium into another in which its wave velocity is different. 2. Ophthalm. a. the ability of the …   Universalium

• refraction —   the tendency for waves to become more parallel to the coastline as they approach it. Caused by the slowing of waves at their base as they enter shallower water …   Geography glossary

• refraction — noun the fact or phenomenon of light, radio waves, etc., being refracted. Derivatives refractive adjective refractively adverb …   English new terms dictionary

• Seismic refraction — is a geophysical principle (see refraction) governed by Snell s Law. Used in the fields of engineering geology, geotechnical engineering and exploration geophysics, seismic refraction traverses (seismic lines) are performed using a seismograph(s) …   Wikipedia

• double refraction — Optics. the separation of a ray of light into two unequally refracted, plane polarized rays of orthogonal polarizations, occurring in crystals in which the velocity of light rays is not the same in all directions. Also called birefringence. [1870 …   Universalium

• Negative refraction — is the name for an electromagnetic phenomenon where light rays are refracted at an interface in the reverse sense to that normally expected. Such an effect can be obtained using a metamaterial which has been designed to achieve a negative value… …   Wikipedia

• Boussinesq approximation (water waves) — In fluid dynamics, the Boussinesq approximation for water waves is an approximation valid for weakly non linear and fairly long waves. The approximation is named after Joseph Boussinesq, who first derived them in response to the observation by… …   Wikipedia

• H waves — Hertzian Hertz i*an, a. Of or pert. to the German physicist Heinrich Hertz. [Webster 1913 Suppl.] {Hertzian telegraphy}, telegraphy by means of the Hertzian waves; wireless telegraphy. {H. waves}, electric waves; so called because Hertz was the… …   The Collaborative International Dictionary of English

• Magneto-ionic double refraction — In telecommunication, magneto ionic double refraction is the combined effect of the Earth s magnetic field and atmospheric ionization, whereby a linearly polarized wave entering the ionosphere is split into two components called the orinary wave… …   Wikipedia