| 单词 | double refraction |
| 例句 | The largest may become crystalline, changing suddenly into polyhedral bodies with evident double refraction and the optical properties belonging to crystals. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7 "Crocoite" to "Cuba" 2012-01-22T03:00:24.397Z A more important discovery was that of double refraction temporarily produced in viscous liquids. Heroes of Science: Physicists 2012-01-17T03:00:17Z The existence of internal strains in glass can be readily recognized by examination in polarized light, any signs of double refraction indicating the existence of strain. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 1 "Gichtel, Johann" to "Glory" 2012-01-11T03:00:20.463Z History of the Inductive Sciences," observes that, "by the accidental placing of a rhomb of calcareous spar, upon a book or line, Bartholinus discovered the property of the double refraction of light. A Logic Of Facts Or, Every-day Reasoning 2011-07-22T02:00:18.543Z It is translucent, or transparent, and often exhibits the property of double refraction. Scenes and Andventures in the Semi-Alpine Region of the Ozark Mountains of Missouri and Arkansas 2011-07-10T02:00:18.883Z The difference between the two indices is a measure of the strength of the double refraction or birefringence. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7 "Crocoite" to "Cuba" 2012-01-22T03:00:24.397Z Fluor-spar, though cubic, sometimes exhibits weak double refraction, probably due to internal tension. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 5 "Fleury, Claude" to "Foraker" 2011-04-03T02:00:20.883Z With this apparatus the laws of reflection, refraction and polarization can readily be verified, and also the double refraction of crystals, and of bodies possessing a fibrous or laminated structure such as jute or books. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" 2011-01-29T03:00:23.777Z Image Right: The phenomenon of double refraction in calcite. Invisibility: After several years of research, it's just gotten weirder 2011-01-11T18:45:11.203Z The sign of the double refraction may be either positive or negative, and some crystals are divided into optically biaxial sectors. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 3 "Apollodorus" to "Aral" The particular colour seen will depend on the strength of the double refraction, the orientation of the crystal or section, and upon its thickness. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7 "Crocoite" to "Cuba" 2012-01-22T03:00:24.397Z The substance is usually optically isotropic, though sometimes it exhibits anomalous double refraction; fibrous zinc sulphide which is doubly refracting is to be referred to the hexagonal species wurtzite. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1 "Bisharin" to "Bohea" They tend to be crystalline, though on a fine scale, and appear under the microscope composed of small sharply angular rhombohedra, with a perfect cleavage and very strong double refraction. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 6 "Dodwell" to "Drama" How little can we convey the fullness of life, the glittering interests, the interweaving secondary aspects, the dawns and dreams and double refractions of experience! The Passionate Friends In addition to this, some of the phenomena exhibited by it, such as diffraction and double refraction, are quite incompatible with the theory that the ether is an elastic solid. The Machinery of the Universe Mechanical Conceptions of Physical Phenomena The number and distance apart of the rings depend on the strength of the double refraction and on the thickness of the crystal. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7 "Crocoite" to "Cuba" 2012-01-22T03:00:24.397Z Its strong double refraction and its relative softness, as well as its great density will serve to distinguish it. A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public It exhibits double refraction, and is a crystallised mineral, brittle, and showing a green streak. The Chemistry, Properties and Tests of Precious Stones He further proved that substances under pressure and strain could produce double refraction in them, as did glass under the same conditions in light. Sir Jagadis Chunder Bose His Life and Speeches Or is he more liable to error in noting the fact of his mental joy or sorrow, than in observing the effect of the extraordinary ray in double refraction? Fables of Infidelity and Facts of Faith Being an Examination of the Evidences of Infidelity Brewster's discoveries respecting double refraction and dipolarisation proved the essential truth of the classification of crystalline forms according to the number of axes, by showing that the molecular constitution depends upon the axes. Essays on Education and Kindred Subjects Everyman's Library Its double refraction is very large also, so that the doubling of the edges of the rear facets may easily be seen through the table with a lens. A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public Fresnel founded his theory of double refraction and reflexion by transparent surfaces, on the hypothesis that the vibration of a ray of polarized light is perpendicular to the plane of polarization. The New Physics and Its Evolution And it will be seen hereafter that this hypothesis serves excellently to explain the double refraction of certain transparent bodies. Treatise on Light And this double refraction of his mind by which a concentrated and individualised Britling did but present a larger impersonal Britling beneath, carried with it a duplication of his conscience and sense of responsibility. Mr. Britling Sees It Through In a certain class of crystals the structure is homogeneous, and such crystals produce no double refraction. Six Lectures on Light Delivered In The United States In 1872-1873 With hardness evidently between 7 and 8 and with double refraction and with the kind of flaws peculiar to rather brittle minerals we had in all probability either a tourmaline or an emerald. A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public Halos of this nature are supposed to arise from the double refraction of the rays from the sun as the light passes through thin clouds, or from the transmission of light through particles of ice. A Cotswold Village This was, that this crystal, as well as that from Iceland, has a double refraction, though less evident. Treatise on Light Never had the double refraction of his mind been more clearly defined. Mr. Britling Sees It Through This proves the double refraction of the heat. Six Lectures on Light Delivered In The United States In 1872-1873 In properties they are essentially alike, having specific gravity 2.66, hardness 7, slight double refraction, etc., the slight differences that exist being due only to the presence of varying amounts of foreign matter. A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public It is used in explaining the phenomena of double refraction. The Gutenberg Webster's Unabridged Dictionary Section T, U, V, and W The power of double refraction is possessed by all crystals except those of the isometric system. The Gutenberg Webster's Unabridged Dictionary Section R It is used for the prisms of the polariscope, because of its strong double refraction. The Gutenberg Webster's Unabridged Dictionary Section I, J, K, and L In consequence of this symmetry the elasticity is the same in all directions perpendicular to the axis, and hence a ray transmitted along the axis suffers no double refraction. Six Lectures on Light Delivered In The United States In 1872-1873 The expert would, however, note it and could detect the imitation by that difference as well as by the lack of double refraction. A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public When those lime-stones have been in such a situation that they could form perfect crystals they are called spars, some of which possess a double refraction, as observed by Sir Isaac Newton. The Botanic Garden A Poem in Two Parts. Part 1: the Economy of Vegetation 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. Autobiography of Sir George Biddell Airy Transparent and colourless, like glass, this mineral possesses the property of double refraction—any small object viewed through it in a particular direction appearing double. Wonders of Creation I now remove the analyzer, and put in its place the piece of Iceland spar with which we have already illustrated double refraction. Six Lectures on Light Delivered In The United States In 1872-1873 On the other hand, I used to find Paul Tichlorne plunged as deeply into the study of light polarization, diffraction, and interference, single and double refraction, and all manner of strange organic compounds. Moon-Face In this direction a ray suffers no double refraction, in all others it does. Six Lectures on Light Delivered In The United States In 1872-1873 This direction of no double refraction is called the optic axis of the crystal. Six Lectures on Light Delivered In The United States In 1872-1873 On the screen before you are two disks of light produced by the double refraction of Iceland spar. Six Lectures on Light Delivered In The United States In 1872-1873 But, the moment we deviate from the parallelism with the axis, double refraction sets in. Six Lectures on Light Delivered In The United States In 1872-1873 By means of Iceland spar cut in the proper direction, double refraction is capable of easy illustration. Six Lectures on Light Delivered In The United States In 1872-1873 He deduced from it the laws of reflection and refraction, and applied it to explain the double refraction of Iceland spar. Six Lectures on Light Delivered In The United States In 1872-1873 Along the former, therefore, the ray is undivided, while along all the others we have double refraction. Six Lectures on Light Delivered In The United States In 1872-1873 The identity meant is such as subsists between one colour and another, causing them to behave alike as regards reflection, refraction, double refraction, and polarization. Six Lectures on Light Delivered In The United States In 1872-1873 |
| 随便看 |
英语例句辞典收录了117811条英语例句在线翻译词条，基本涵盖了全部常用单词及词组的例句翻译及用法，是英语学习的有利工具。