QUE SIGNIFIE REFRACTION EN ANGLAIS
Réfraction
La réfraction est le changement de direction d'une onde due à une modification de son moyen de transmission. La réfraction est essentiellement un phénomène de surface. Le phénomène concerne principalement la gouvernance de la loi de conservation de l'énergie et de l'élan. En raison du changement de milieu, la vitesse de phase de l'onde est modifiée mais sa fréquence reste constante. Ceci est le plus souvent observé lorsqu'une onde passe d'un moyen à l'autre à n'importe quel angle autre que 90 ° ou 0 °. La réfraction de la lumière est le phénomène le plus fréquent, mais tout type de vague peut se réfracter lorsqu'elle interagit avec un médium, par exemple lorsque les ondes sonores passent d'un milieu à l'autre ou lorsque les ondes d'eau se déplacent dans l'eau d'une profondeur différente. La réfraction est décrite par la loi de Snell, qui indique que, pour une paire donnée de média et une onde avec une fréquence unique, le rapport des sinus de l'angle d'incidence θ1 et l'angle de réfraction θ2 est équivalent au rapport des vitesses de phase dans Deux médias, ou ...
définition de refraction dans le dictionnaire anglais
La première définition de la réfraction dans le dictionnaire est le changement de direction d'une onde de propagation, telle que la lumière ou le son, en passant d'un milieu à un autre dans lequel elle a une vitesse différente. Une autre définition de la réfraction est la quantité par laquelle une onde est réfractée. La réfraction est aussi la capacité de l'œil à réfracter la lumière.
MOTS EN ANGLAIS EN RAPPORT AVEC «REFRACTION»
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2 CITATIONS EN ANGLAIS AVEC «REFRACTION»
Citations et phrases célèbres avec le mot
refraction.
The model I came up with in 1964 is just the invention of a rather strange sort of medium that looks the same in all directions and produces a kind of refraction that is a little bit more complicated than that of light in glass or water.
Similarly, many a young man, hearing for the first time of the refraction of stellar light, has thought that doubt was cast on the whole of astronomy, whereas nothing is required but an easily effected and unimportant correction to put everything right again.
10 LIVRES EN ANGLAIS EN RAPPORT AVEC «REFRACTION»
Découvrez l'usage de
refraction dans la sélection bibliographique suivante. Des livres en rapport avec
refraction et de courts extraits de ceux-ci pour replacer dans son contexte son utilisation littéraire.
1
Clinical Optics and
Refraction: A Guide for Optometrists, ...
With its suggested routines and numerous examples, this new book offers a straightforward "how to approach" to the understanding of clinical optics, refraction and contact lens optics.
Andrew Keirl, Caroline Christie,
2007
2
Eye Examination and
Refraction
The new edition has been updated and largely rewritten, particularly Part 1, and almost 40 new case histories, covering a wider range of conditions, have been added.
Robert Fletcher, D. Still, R. J. Allen,
1998
3
Borish's Clinical
Refraction
Now updated and expanded to cover the latest technologies, this full-color text on clinical refraction uses an easy-to-read format to give optometry students and practitioners all the important information they need.
William J. Benjamin, Irvin M. Borish,
2006
4
Negative-
Refraction Metamaterials: Fundamental Principles ...
Next, a broad spectrum of exciting new research and emerging applications is examined, including: * Theory and experiments behind a super-resolving, negative-refractive-index transmission-line lens * 3-D transmission-line metamaterials with ...
G. V. Eleftheriades, K. G. Balmain,
2005
5
Theory And Practice Of Optics And
Refraction
The second edition of Theory and Practice of Optics and Refraction has been thoroughly revised and updated keeping in mind the tremendous advances which have occurred in the field of optics and refraction.
6
Reflection and
Refraction: Studies in Biblical ...
This volume of thirty articles covering a wide range of subjects related to Old Testament study is written by colleagues, friends and students of A. Graeme Auld to honour the occasion of his sixty-fifth birthday.
Robert Rezetko, Timothy Henry Lim, W. Brian Aucker,
2007
7
McQs in Optics and
Refraction
This text comprises a selection of carefully chosen questions based on the Optics and Refraction module of the Royal College of Ophthalmologists examinations. For each of the 60 questions a short informative answer is supplied.
Ivor S. Levy, Paul Riordan-Eva,
1993
8
Manipulating Light: Reflection,
Refraction, and Absorption
Explains how light waves bounce, bend, or are absorbed, and discusses space travel, mirrors, kaleidoscopes, and mirages.
9
Color and Light in Nature
2.17 Atmospheric refraction When the sun sets over water and its lower rim first
touches the sea, the sun is actually below the horizon. We know this from timing
the sun's motion across the sky. As it approaches the horizon it appears to slow ...
David K. Lynch, William Charles Livingston,
2001
10
Acoustic Metamaterials: Negative
Refraction, Imaging, ...
It is hoped that the variety of subjects touched upon in this book, and the ways in which they can be treated theoretically, numerically and experimentally give a grasp of the richness of the emerging topic of acoustic metamaterials and ...
Richard V. Craster, Sébastien Guenneau,
2012
10 ACTUALITÉS CONTENANT LE TERME «REFRACTION»
Découvrez de quoi on parle dans les médias nationaux et internationaux et comment le terme
refraction est employé dans le contexte des actualités suivantes.
Point spread function provides more accurate refraction, speaker says
According to the study abstract, each patient first underwent a subjective refraction with a standard phoropter with binocular refraction using +1.0 D fogging in the ... «Healio, juil 15»
Water-based metamaterials: Negative refraction of sound
Porous rubber microbeads suspended in a gel are found to exhibit a negative acoustic index of refraction, which makes these metamaterials promising for ... «Nature.com, mars 15»
Engineering discovery brings invisibility closer to reality
Through a prism with negative refraction, a straw leaning in a glass of water would appear inverted: The piece above the water's surface would appear below the ... «Phys.Org, janv 15»
The Download: Co-working space Refraction Reston finds early …
A suburban setting appears to be working for Refraction Reston, a co-working space in Reston Town Center that opened its doors just seven months ago. «Washington Post, oct 14»
Mirror Image: Reflection and Refraction of Light
The reflection of light rays is one of the major aspects of geometric optics; the other is refraction, or the bending of light rays. Geometric optics is one of two broad ... «LiveScience.com, oct 14»
Ai Weiwei Creates a Massive Metal Bird Wing From Tibetan Solar …
Ai Weiwei's new installation entitled Refraction resembles a giant bird wing-symbol of freedom, but instead of feathers, the artwork is made from repurposed ... «Inhabitat, sept 14»
Aberrometry-Based Refraction: Enough for Surgical Planning?
Intraoperative wavefront aberrometry (IWA)-based refraction may not provide reliable or consistent measurements and may not be ideally suited for guiding the ... «Medscape, juin 14»
Reston's Canvas Launches Refraction, a Co-Working Space Based …
But Monday, Reston's Canvas took a new approach to the model opening a 17,000 sq. ft. space called Refraction. Not only is Refraction set apart from other D.C. ... «In The Capital, mars 14»
'Refraction' to launch in Reston with 17000 square feet of co-working …
James Quigley, CEO of Canvas*, is driving this point home with Refraction, a new startup workspace in the middle of the Reston Town Center, totaling 17,000 ... «Washington Business Journal, mars 14»
The fish that SPITS to kill: Archerfish uses complex physics to …
Research has shown that the animal is able to instinctively take into account light refraction and other physics principles such as the Plateau–Rayleigh instability ... «Daily Mail, déc 13»