The Royal Society

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The production of single crystals of aluminium and their tensile properties
The Royal Society - Tập 100 Số 704 - Trang 329-353 - 1921
H. C. H. Carpenter, C. F. Elam
The crystals of which metals and alloys are composed are allotriomorphic. They are generally very small, and cannot usually be distinguished without the aid of a microscope. It is quite true that in the case of large castings weighing many tons, crystals of several cubic inches’ capacity may be formed under special conditions of cooling. These, however, are quite rare, and possess the well-known d... hiện toàn bộ
The viscosity of a fluid containing small drops of another fluid
The Royal Society - Tập 138 Số 834 - Trang 41-48 - 1932
Geoffrey Ingram Taylor
The viscosity of a fluid in which small solid spheres are suspended has been studied by Einstein as a problem in theoretical hydrodynamics. Einstein’s paper gave rise to many experimental researches on the viscosity of fluids containing solid particles, and it soon became clear that though complete agreement with the theory might be expected when the particles are true sphered, some modification i... hiện toàn bộ
Optical rotatory power. I—A theoretical calculation for a molecule containing only isotropic refractive centres
The Royal Society - Tập 144 Số 853 - Trang 655-675 - 1934
Samuel Francis Boys
Ever since the time of van’t Hoff and Le Bel the number investigations dependent on optical activity, or attempting to elucidate optical activity, has been very great, and it is remarkable that, even at the present time, there is no theoretical formula which gives the relation between the magnitude of the rotation and the chemical structure of the molecule concerned. The present communication supp... hiện toàn bộ
Optical rotatory power. II.—The calculation of the rotatory power of a molecule containing four refractive radicals at the corners of an irregular tetrahedron
The Royal Society - Tập 144 Số 853 - Trang 675-692 - 1934
Samuel Francis Boys
It has been shown in the previous paper that, where there are four refractive centres arranged dissymmetrically in a molecule, there is a definite rotatory power depending on the dimensions of the molecule. In the simple active molecule of four different radicals we seem to have been provided directly with four different refractive centres. It is, however, necessary to examine if a chemical radica... hiện toàn bộ
The propagation of groups of waves in dispersive media, with application to waves on water produced by a travelling disturbance
The Royal Society - Tập 81 Số 549 - Trang 398-430 - 1908
Thomas Henry Havelock
The object of this paper is to illustrate the main features of wave propagation in dispersive media. In the case of surface waves on deep water it has been remarked that the earlier investigators considered the more difficult problem of the propagation of an arbitrary initial disturbance as expressed by a Fourier integral, ignoring the simpler theory developed subsequently by considering the propa... hiện toàn bộ
The reflection of X-rays by crystals
The Royal Society - Tập 88 Số 605 - Trang 428-438 - 1913
William Bragg
In a discussion of the Laue photographs it has been shown that they may conveniently be interpreted as due to the reflection of X-rays in such planes within the crystal as are rich in atoms. This leads at once to the attempt to use cleavage planes as mirrors, and it has been found that mica gives a reflected pencil from its cleavage plane strong enough to make a visible impression on a photographi... hiện toàn bộ
The structure of some crystals as indicated by their diffraction of X-rays
The Royal Society - Tập 89 Số 610 - Trang 248-277 - 1913
William Bragg
A new method of investigating the structure of a crystal has been afforded by the work of Laue* and his collaborators on the diffraction of X-rays by crystals. The phenomena which they were the first to investigate, and which have since been observed by many others, lend themselves readily to the explanation proposed by Laue, who supposed that electromagnetic waves of very short wave-lengths were ... hiện toàn bộ
The thermodynamics of adsorption at the surface of solutions
The Royal Society - Tập 139 Số 837 - Trang 218-236 - 1933
E. A. Guggenheim, Neil Kensington Adam
In Gibbs’ thermodynamic theory of surfaces, the general equations governing equilibrium at interfaces were given, including equations governing adsorption. He pointed out, that in order to assign definite numerical values to the surface excess Г of each component, it is necessary to choose a definite position for a certain mathematical surface, placed parallel to, and within, or near to, the inhom... hiện toàn bộ
On an expansion apparatus for making visible the tracks of ionising particles in gases and some results obtained by its use
The Royal Society - Tập 87 Số 595 - Trang 277-292 - 1912
Charles Thomson Rees Wilson
In a recent communication I described a method of making visible the tracks of ionising particles through a moist gas by condensing water upon the ions immediately after their liberation. At that time I had only succeeded in obtaining photographs of the clouds condensed on the ions produced along the tracks of α -particles and of the corpuscles set free by the passage of X-rays through the gas. Th... hiện toàn bộ
The cataphoresis of suspended particles. Part I.—The equation of cataphoresis
The Royal Society - Tập 133 Số 821 - Trang 106-129 - 1931
D. C. Henry
§ 1. The theory of cataphoresis, and of the complementary phenomenon of electrosmosis, is based on the conception of an “ electrical double layer ” at the interface between the two phases whose relative motion is under consideration.* In the original theory, as propounded by Quincke and Helm­holtz, this electrical double layer was regarded as a kind of parallel plate condenser made up of two lamin... hiện toàn bộ
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