The interior of the eye contains three transparent media for the refraction of the rays of light on their way from the cornea to the visual nerve.
On the other hand, owing to the small depth of the focus, there would probably be less general refraction of the wave-paths than in the Neapolitan earthquake.
He regarded it in every case as due to the reflection or refraction of the earth-waves by underlying rocks, though he does not explain why the reflected or refracted wave should be more intense than that transmitted directly.
Allowing for the supposed change of direction by refraction at the Monte St. Angelo range on the way to Naples, Mallet finds the mean surface velocity to be 787 feet per second.
Now this proportion is found by experiment the same with that of the sines of incidence and of refraction between air and glass; which agrees with the theory of the refraction of undulations, as will be seen hereafter.
Brewster have determined that the sapphire possesses a stronger refraction than any other substance capable of giving a single image (diamond excepted), [p460] while its dispersive power is only 0.
Yes, if you do not take into account the refraction produced by the terrestrial atmosphere, not if you do take that refraction into account.
Much beyond if you do not take the atmospheric refractioninto account," said Barbicane.
Thus in field-glasses refraction plays the principal part, and reflection does in the telescope.
From the absence of refraction in the rays of the planets occulted by her it is concluded that she can have no atmosphere.
The rays from the luminous object traverse the first glass, and by refraction form an image upside down at its focus.
Hence it is always important to make our observations on the heavenly bodies when they are at as great an elevation as possible above the horizon, being then less affected by refraction than at lower altitudes.
The rapid increase of refraction near the horizon is strikingly evinced by the oval figure which the sun assumes when near the horizon, and which is seen to the greatest advantage when light clouds enable us to view the solar disk.
When a body, in its diurnal revolution, comes to the meridian, it is at its highest point above the horizon, and is then least affected by refraction and parallax.
Refraction elevates the apparent place of a body, while parallax depresses it.
It was known that the direction of the line of refraction varied with every variation in the direction of the line of incidence, but it was not known how; that is, what changes of the one corresponded to the different changes of the other.
The law of “refracted rays” (the constancy of the ratio between the sines of incidence and of refraction for each refracting substance) was ascertained by direct measurement, and therefore by the Method of Agreement.
For instance, suppose the subject of inquiry to be the cause of the double refraction of light.
Such were the different false hypotheses which Kepler made respecting the law of the refraction of light.
Similarly, by this method of differences, the atomic refraction of any element may be determined.
When light passes from air into water or glass, the refracted ray is bent toward the perpendicular, so that the angle of refraction is smaller than the angle of incidence.
It is these tiny drops which by their refraction and their scattering of light produce the rainbow in the heavens.
By refraction the magnifying glass reveals objects hidden because of their minuteness, and enlarges for our careful contemplation objects otherwise barely visible.
The point where AC and AO meet after refraction will be the position of the top of the arrow.
The angle of refraction is the angle formed by the refracted ray and the perpendicular to the surface at the point where the light strikes it.
How refraction accomplishes these results will be explained in the following Sections.
When a ray of light passes from water or glass into air, the refracted ray is bent away from the perpendicular so that the angle of refraction is greater than the angle of incidence.
Refraction is the source of many illusions; bent rays of light make objects appear where they really are not.
The refraction of our own atmosphere has by no means made an end of its tricks with the appearances of things in our little world of thought.
Very soon light reappeared and grew, and as the sun was low on the horizon, the refraction edged all objects with a [v]spectral ring.
The optical illusions due to the reflection and refraction of light are not peculiar to the individual, but arise in all minds under precisely similar external conditions.
Reason why the different Refraction of every oblique Plain, as A B, C D, &c.
An Instrument to measure the Refraction of Fluids.
Exhibits a plain Method of measuring theRefraction of Fluids at all Angles, and of proving thereby that it is always in one fixed Proportion of the Sines, as the next Figure will explain it.
A particular Apparatus to manifest and measure theRefraction of Air.
Yet is the Refraction by the second Prism never then able to produce any Variety of Colours; but exhibits the Image always of that Colour alone, which falls upon it before the second Refraction.
Yes, if we do not take into consideration the refraction produced by the terrestrial atmosphere.
By the absence of refraction in the rays of the planets occulted by her we conclude that she is absolutely devoid of an atmosphere.
Far beyond it, if the atmosphericrefraction is not taken into consideration," said Barbicane.
Much of the characteristic quality of out-door light is the result of the diffusion of light due to both the refraction and the reflection of the sky.
And the white light may be broken up (separated by refractionor the turning aside of light rays from their true course) into the colors of the rainbow, which is itself only this same decomposition of light by atmospheric refraction.
The foundation of our knowledge of therefraction of our atmosphere.
The loss of light by absorption in passing through the glass and by refraction varies from 10% to 15%.
Dioptric elements are those in which the light rays pass through the optical glass, suffering refraction at the incident and emergent faces (fig.
Many years ago a double-image micrometer, in which the images were formed by the double refraction of a sphere of quartz, was prepared by Mr Dollond for Capt.
In mathematics I find investigations of Motion in a resisting medium, Form of Saturn, Draft of a Paper about an instrument for exhibiting the fundamental law of refraction (read at the Philosophical Society by Mr Peacock on Nov.
Adopting the same principle on a larger scale, I have had constructed by Mr Hilger a micrometer with double refraction of a sphere of Iceland spar.
Both will penetrate many different kinds of matter, but it needs reflection or refraction to make visible an object on which it impinges.
To face page 97]] It is remarkable that there should have been so much refraction work, and there is no doubt that a working optician, i.
The several colored and other rays of which light is composed, separated by the refraction of a prism or other means, and observed or studied either as spread out on a screen, by direct vision, by photography, or otherwise.
It is furnished with two eyeglasses, and by refraction or reflection the pictures are superimposed, so as to appear as one to the observer.
At the moment of the observation of noon the oscillations of the horizon, crossed by streaks or black bands of very variable size, produced changes of refraction from 3 to 4 degrees.
Refraction changeth not the Qualities of the Rays, but only separates those which have divers Qualities, by means of their different Refrangibility.
So that in truth, all Vision is Refracted by an internalRefraction made in ipso Oculo.
The invisible rays that produce heat are capable of reflection as well as refraction in the same manner as the visible rays.
The general facts of the refraction and effects of the solar beam offer an analogy to the agencies of electricity.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "refraction" in a variety of sentences. We hope that you will now be able to make sentences using this word.
