REFRACTION • E-FREE TRANSLATION.COM • Definition of Refraction

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Refraction

noun

The change in direction of a propagating wave (light or sound) when passing from one medium to another.

The amount by which a propagating wave is bent. Synonyms: deflection, deflexion.

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angle of refraction

double refraction

index of refraction

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"Refraction" Quotes from Famous Books

... alcoholic homes driving the children out into the streets. This was found to be markedly the case, the children of alcoholic parents spending much more of their spare time in the streets. An examination, however, of the vision and refraction of children with regard to the time they spent in-and out-of-doors, showed no clear and definite result, the children who spent the whole or most of their spare time in the streets having the most myopia and also most normal sight. It was not possible to assert that the outdoor life ...

— Applied Eugenics • Paul Popenoe and Roswell Hill Johnson

... different varieties of tabasheer, Brewster proceeded to determine its refractive index, arriving at the remarkable result that tabasheer "has a lower index of refraction than any other known solid or liquid, and that it actually holds an intermediate place between water and gaseous bodies!" This excessively low refractive power Brewster believes to afford a complete explanation of the extraordinary behavior ...

— Scientific American Supplement, No. 595, May 28, 1887 • Various

... particular occasion it stood still for a time, thus causing the light to remain longer; and I would say that they did not conjecture that, from the amount of snow in the air (see Josh. x. 11), the refraction may have been greater than usual, or that there may have been some other cause which we will not ...

— The Philosophy of Spinoza • Baruch de Spinoza

... thought that they saw lakes of water in the distance, and hastened on to them; and then they fancied they were close to rivers and islands, covered with luxuriant foliage, but still were doomed to disappointment; as all was the result of the highly-rarefied air, and the refraction of the sun's rays on the sultry plain. What would they have given for a bush even to afford them any shelter from the noonday sun, for the crowns of their heads appeared as if covered with live coal, and their minds began to wander. The poor horses moved at the slowest pace, and only when ...

— The Mission • Frederick Marryat

... observatories we employ telescopes of two entirely different classes. The more familiar forms are those known as refractors, in which the operation of condensing the rays of light is conducted by refraction. The character of the refractor is shown in Fig. 1. The rays from the star fall upon the object-glass at the end of the telescope, and on passing through they become refracted into a converging beam, so that all intersect at the focus. Diverging from thence, the rays encounter ...

— The Story of the Heavens • Robert Stawell Ball

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