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BREDEL Marc
DOUBLE JE
Jean-Claude SIMOEN. 1979. In-12. Broché. Bon état, Couv. convenable, Dos satisfaisant, Intérieur frais. 160 pages; couverture rempliée.. . . . Classification Dewey : 840-Littératures des langues romanes. Littérature française
Reference : R160078256
Classification Dewey : 840-Littératures des langues romanes. Littérature française
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5 book(s) with the same title
HERSCHEL, WILLIAM. - INDICATION OF THE UNIVERSALITY OF NEWTON'S LAWS OF MOTION.
Reference : 42303
(1803)
Account of the Changes that have happened, during the last Twenty-five Years, in the relative Situation of Double-stars" with an Investigation of the Cause to which they are owing. Read June 9, 1803.
(London, Bulwer and Co., 1803). 4to. Without wrappers as extracted from ""Philosophical Transactions of the Royal Society of London."" Year 1803-Part II. Pp. 339-382 and 2 engraved plates.
First appearance of a fundamental paper in cosmology and physics as it contains the first observational data to support that Newton's dynamical laws holds outside the solar system. Herschel shows here that the circulating motions of double-stars were under gravitational forces. Until then the validity of the law of gravity was only established within the solar system. Now, a century after the establishment of the law, it was traced out in the motion of incredibly distant stars and the theory first truly earned its title of Universal. The exact proof of the mutual gravitation of the double-stars was only obtained five years after Herschel's death, when the motions of the stars were more precisely dtermined.One of the most notable of Herschel's discoveries of double-stars, binary stars. A first cataloque of such pairs was published early in 1782 and contained 269, of which 227 were new discoveries. ""Twenty years after the publication of his first cataloque Herschel was of Michell's opinion - Michell had expressed the opinion that the odds in favour of a physical relation between the members of herschel's newly discovered double stars were ""beyond arithmetic"" - but was able to support it by evidence of an entirely novel and much more direct character. A series of observations of Castor, presented in two papers in the ""Philosophical Transaction"" in 1803 (the paper offered here) and 1804, which were fortunately supplemented by an observation of Bradley's in 1759, had shewn a progressive alteration in the direction of the line joining its two components, of such a character as to leave no doubt that the two stars were revolving round one another"" and there were five oher cases in which a similar motion was observed...it was shown that the double-star was really formed by a connected pair of stars near enough to influence one another's mortion.""(Berry in ""A Short History of Astronomy"" pp. 342-43).
HERSCHEL, WILLIAM. - INDICATION OF THE UNIVERSALITY OF NEWTON'S LAWS OF MOTION - BINARY STARS.
Reference : 45133
(1803)
Account of the Changes that have happened, during the last Twenty-five Years, in the relative Situation of Double-stars" with an Investigation of the Cause to which they are owing. Read June 9, 1803. (+) Continuation of an Account ofthe Changes that h...
(London, Bulwer and Co., 1803 a. 1804). 4to. Without wrappers as extracted from ""Philosophical Transactions of the Royal Society of London."" Year 1803-Part II. Pp. 339-382 and 2 engraved plates. a. Year 1804-Part II. Pp. 353-384 a. 1 engraved plate. Light browning to a few margins. 2 plates with scattered brownspots, otherwise clean and wide-margined.
First appearance of these fundamental paper in cosmology and physics as they contains the FIRST OBSERVATIONAL DATA TO SUPPORT THAT NEWTON'S DYNAMICAL LAWS HOLDS OUTSIDE THE SOLAR SYSTEM. Herschel shows here that the circulating motions of double-stars were under gravitational forces. Until then the validity of the law of gravity was only established within the solar system. Now, a century after the establishment of the law, it was traced out in the motion of incredibly distant stars and the theory first truly earned its title of Universal. The exact proof of the mutual gravitation of the double-stars was only obtained five years after Herschel's death, when the motions of the stars were more precisely dtermined.One of the most notable of Herschel's discoveries of double-stars, binary stars. A first cataloque of such pairs was published early in 1782 and contained 269, of which 227 were new discoveries. ""Twenty years after the publication of his first cataloque Herschel was of Michell's opinion - Michell had expressed the opinion that the odds in favour of a physical relation between the members of Herschel's newly discovered double stars were ""beyond arithmetic"" - but was able to support it by evidence of an entirely novel and much more direct character. A series of observations of Castor, presented in two papers in the ""Philosophical Transaction"" in 1803 and 1804 (the paperS offered ), which were fortunately supplemented by an observation of Bradley's in 1759, had shewn a progressive alteration in the direction of the line joining its two components, of such a character as to leave no doubt that the two stars were revolving round one another"" and there were five oher cases in which a similar motion was observed...it was shown that the double-star was really formed by a connected pair of stars near enough to influence one another's mortion.""(Berry in ""A Short History of Astronomy"" pp. 342-43).
Observations of the apparent distances and positions of 458 double and triple Stars, made in the Years 1823, 1824, and 1825" together with a re-examination of 36 Stars of the samer description, the distances and positions of which were communicated in...
London, W. Nicol, 1826. 4to. ""Philosophical Transactions"" 1826 - Part I. With titlepage to Part I. (2),391,,XVIII pp. Titlepage with a stamp on verso. A faint brownspots to p. 1. One leaf a bit creased.
First printing of South's second large star catalogue of the distances and positions of double and triple stars.""Double stars, essentially discovered by Wiiliam Herschel, were of great interest throughout the nineteenth century—new ones being found and position measurements made more precise with each improvement in telescope construction. South, working with John Herschel during the years 1821–1823. reobserved the double stars charted originally by William Herschel, mainly for the purpose of detecting position changes. Their observations helped verify the newly recognized orbital motion of these neighboring stars. Their resulting catalog of 380 double stars, presented to the Royal Society in 1824, earned them the gold medal of the Astronomical Society and the grand prize of the Institut de France. For his second catalog of double stars, two years later, South was awarded the Copley Medal of the Royal Society.""(DSB).
On the laws which regulate the Absorption of polarised Light by Double Refracting Crystals. In a Letter addressed to ... Sir Joseph Banks. read November 12, 1818.
(London, W. Bulmer and Co., 1819). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1819 - Part I. Pp. 11-27, 1 textillustr.
First appearance of one of Brewsters importent paper in the field of optical mineralogy, a field he himself created. In the paper he investigates the polarization-force of double refracting crystals. In 1819 he was able to group all but a few of hundreds of minerals and crystals into mutually consistent optical and mineralogical categories: the primitive form determined the number of axes of double refraction.""He regarded ""all the various phenomena of polarisation of light by reflexion and refraction as brought under the dominion of laws as well determined as those which regulate the motions of the planets."" In 1816 he received the Copley Medal, in 1819 two Rumford Medals, and in 1831 a Royal Medal for the papers in which he announced these discoveries. On the popular level, Brewster’s reputation was established in 1816 by the fad for his kaleidoscope. Its invention was a direct result of his studies of the ory of polarization by multiple reflections.""(DSB).
On the laws which regulate the Absorption of polarised Light by Double Refracting Crystals. In a Letter addressed to ... Sir Joseph Banks. read November 12, 1818.
(London, W. Bulmer and Co., 1819). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1819 - Part I. Pp. 11-27, 1 textillustr.
First appearance of one of Brewsters importent paper in the field of optical mineralogy, a field he himself created. In the paper he investigates the polarization-force of double refracting crystals. In 1819 he was able to group all but a few of hundreds of minerals and crystals into mutually consistent optical and mineralogical categories: the primitive form determined the number of axes of double refraction.""He regarded ""all the various phenomena of polarisation of light by reflexion and refraction as brought under the dominion of laws as well determined as those which regulate the motions of the planets."" In 1816 he received the Copley Medal, in 1819 two Rumford Medals, and in 1831 a Royal Medal for the papers in which he announced these discoveries. On the popular level, Brewster’s reputation was established in 1816 by the fad for his kaleidoscope. Its invention was a direct result of his studies of the ory of polarization by multiple reflections.""(DSB).
