Lyttleton raymond arthur (4 Ergebnisse)
Verlag: Harper, 1956
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In den WarenkorbHardcover. Zustand: Good. Hardcover with DJ. Pages are clean and unmarked. Covers show light edge wear. Binding is tight, hinges strong. Dust jacket shows edge wear. Previous owner's name on end paper.; 100% Satisfaction Guaranteed! Ships same or next business day.
Weitere BilderVerlag: Little, Brown, 1961., Boston:, 1961
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In den Warenkorb8vo. 108 pp. Illus., diagrs., index. Blue cloth; spine faded, small paper spine label. With Carnegie Mount Wilson Observatory blind-stamp. Lyttleton was elected a Fellow of the Royal Society in 1955. His application citation read: "Distinguished for his work in astronomy. Author of numerous papers on the origin and early history… of the Solar System, notably his modifications of the collision theory. Showed from work of Cartan that fission of a planet by rotation would give two independent bodies, and consequently that the fission theory of binary stars is untenable (The Stability of Rotating Liquid Masses, 1953). Author (with F. Hoyle) of numerous papers on the astronomical effects of accretion, and (with H. Bondi) of two on the transmission of the tidal friction couple to the Earth's core and on the behaviour of the core during precessions. Author of a striking new theory of comets. (The Comets and their Origin, 1953). He won the Royal Society Royal Medal in 1965 "In recognition of his distinguished contributions to astronomy, particularly for his work on the dynamical stability of galaxies.".
Verlag: Methuen & Co., London, 1963
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In den WarenkorbHardcover. Zustand: Very Good. Zustand des Schutzumschlags: Very Good. 221 pages illustrated with b/w photographs diagrams etc.Contents clean and tight single ownership name to front end paper. Publishers binding clean and tight with no splits or marks.Dj chipped at corners and head and tail of spine.
Weitere BilderOn the dynamical theory of the rotation of the earth. I. The secular retardation of the core. In: Proceedings of the Cambridge Philosophical Society, Vol. 44, 1948.
BONDI, Hermann (1919-2005); Raymond Arthur LYTTLETON (1911-1995).
Verlag: University Press, 1948., Cambridge:, 1948
- Hardcover
Anbieter: Jeff Weber Rare Books, Neuchatel, NEUCH, SchweizJeff Weber Rare Books
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In den Warenkorb255 x 181 mm. Tall 8vo. Pages 345-359. [Entire volume: iv, 604, [2] pp.] Full navy buckram, gilt spine. Blind stamp of the Carnegie Institution of Washington, Mount Wilson Observatory. Fine. "In an earlier paper of the same general title (1) the possibility that the core of the Earth, in view of its supposed liquid nature, does…not partake of the rigid-body motion of the outer shell was discussed with particular reference to the secular diminution of the angular velocity. In addition to this small rate of change of the magnitude of the angular velocity vector of the shell there occur changes in its direction consisting of the precession and nutation, but all the rates of change therein involved are small. The secular retardation takes place with extreme slowness, the rotations involve deviations of the axis with small angular amplitudes, while the precession, though of large angular amplitude, is of very long period compared with the rotation period of the Earth. Accordingly, it may be supposed that the effects of these various changes in the angular velocity can be considered separately in their relation to the motion within the core, and it is the object of this paper to give an account of our investigation into what may be termed for brevity the precession problem. It should perhaps be stated at the outset that the work does not constitute a solution of the problem, which our studies have led us to believe is one of the utmost mathematical difficulty presenting features of an exceptional character in hydro-dynamic theory. After first obtaining the equations of steady motion applicable to the interior, and those applicable to the boundary layer, the solution of the latter equations has been obtained; but in respect of the former equations we have been able to carry the question of the interior motion only as far as showing that no motion representable everywhere by analytic functions and consistent with the boundary conditions is possible. The investigation strongly suggests that no steady-state motion of a permanent character is possible for the interior, though the precise nature of the motion that actually occurs poses a problem of special interest from a hydrodynamic standpoint, but it is one to which we are not able to arrive at any definite answer at present. Without making any progress with the problem thus produced, the paper nevertheless makes clear the inherent difficulties of the problem and also serves to emphasize the inadequacy of any simplified mode of attack assuming classical fluid and resembling, for example, Poincare's method for the nutation problem adopted by Lamb. Thus despite its incompleteness it seemed worthwhile to publish some account of such progress with these highly interesting questions as we have been able to make." "Lyttleton's researches also took him into the realm of geophysics and planetary physics, in particular the structures of the terrestrial group of planets. He was the first to appreciate that the motion of the liquid core of the Earth must be considered on the fullest basis of hydrodynamical theory, and in collaboration with H. Bondi, he conducted extensive mathematical investigations on the effect of tidal friction and of precession on motions within the core." McGraw-Hill modern men of science, II, p. 337.
