標題: Titlebook: Resolute and Undertaking Characters: The Lives of Wilhelm and Otto Struve; Alan H. Batten Book 1988 D. Reidel Publishing Company, Dordrech [打印本頁] 作者: 櫥柜 時間: 2025-3-21 17:23
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作者: Graphite 時間: 2025-3-21 23:37 作者: 凹處 時間: 2025-3-22 04:10 作者: 嫌惡 時間: 2025-3-22 08:20
The Great Refractor,before his marriage he had been observing double stars with the transit instrument and, later, with a Troughton refractor equipped with a micrometer. With these limited means, he became the first to confirm Herschel’s conclusion that the two components of the bright star Castor were moving in orbits around their common centre of mass.作者: 過渡時期 時間: 2025-3-22 10:46
The Astronomical Capital of the World,ttle outward change. Otto remained Director until just after the Observatory’s fiftieth anniversary, and the continuity in Pulkovo’s life during those fifty years was not much affected by the formal change of Director in 1862.作者: 帶子 時間: 2025-3-22 15:43 作者: altruism 時間: 2025-3-22 19:45 作者: 無法解釋 時間: 2025-3-22 21:37 作者: strdulate 時間: 2025-3-23 01:40
,Otto’s Retirement and Last Years,nd Pulkovo, to precipitate the decision. To this extent, Otto may have been right in accusing them of “ulterior motives” (Chapter 15), although he may have misread those motives for something worse than they were. Nevertheless, the situation was a complex one with many factors affecting the course of events.作者: 放氣 時間: 2025-3-23 07:17 作者: 預防注射 時間: 2025-3-23 11:20 作者: ALIEN 時間: 2025-3-23 14:01
Measuring the Earth,enty-five years he packed more than seems possible for any one man to achieve. He was responsible for courses in both mathematics and astronomy, until 1820 when he gave up teaching the former, and he undertook two research projects. The first was the measurement of the arc of the meridian passing th作者: DEMN 時間: 2025-3-23 18:31 作者: 放肆的我 時間: 2025-3-23 22:41
The Astronomical Capital of the World,omers. In Dorpat he had been his father’s student and --like Sabler and Fuss before him-- very lowly assistant. In Pulkovo he was entrusted with the brand-new 15-inch refractor, with which he looked for any double stars his father might have missed, followed unknown or suspected orbital motions of o作者: 儲備 時間: 2025-3-24 05:21
Measuring the Sky,bservers of his time, with access to some of the best instruments, he should be in the forefront of those attempting to meet this supreme challenge to early nineteenth-century astronomy (Chapter 3). Much of his effort in Dorpat had been devoted to this, but complete success eluded him until the very作者: 難聽的聲音 時間: 2025-3-24 07:48
The Early Pulkovo Years,ion. “From 1843 on” Otto tells us “Father’s personal participation in observing became rarer”.. To be sure, in that very year he led a chronometer expedition to determine the longitude difference between Pulkovo and Altona, and he continued for some years to use “his” prime-vertical instrument, as B作者: opalescence 時間: 2025-3-24 13:05
,“Etudes d’Astronomie Stellaire”,ations of the St Petersburg Academy, not to mention the early volumes of .. There remains the book ., published in 1847, which was important in its time and reveals a different side of Wilhelm’s scientific personality.作者: 油膏 時間: 2025-3-24 17:00
,Wilhelm’s Illness and Last Years, field-work had preserved the health of the mature man. After the childhood diseases, Otto wrote, Wilhelm had no illness except for occasional trouble with a tapeworm.. After Wilhelm returned from his visit abroad in 1853, however, the preparation of . for publication took all his energy, and his wa作者: 異端邪說2 時間: 2025-3-24 22:22 作者: 帶傷害 時間: 2025-3-25 02:14
The Companion of Procyon and the Transits of Venus, but we also have the evidence of contemporaries such as Piazzi Smyth who saw him at work (Chapter 7). If still more evidence is needed, the work on artificial double stars, or Otto’s requiring Nyrén to repeat the aberration observations --both described in the previous chapter-- should provide it. 作者: FLACK 時間: 2025-3-25 04:15 作者: 珍奇 時間: 2025-3-25 07:57 作者: 我吃花盤旋 時間: 2025-3-25 15:14
Epilogue the Family Tradition,d generation of astronomers in their family, were the fourth generation in the scholarly tradition, of which their great-grandfather Jacob can justly be regarded as the founder. His ancestors, brothers and sisters were, no doubt, all worthy people, but they would be forgotten if Jacob’s skill at the作者: 起皺紋 時間: 2025-3-25 18:33
0067-0057 he International Astronomical Union in memory of the second Otto Struve. To satisfy my own curiosity, I investigated the precise relationships of the famous astronomers in the family and published an account of them, based mainly on secondary sources. The exercise made me a ware that there was no bi作者: opalescence 時間: 2025-3-25 21:07 作者: exclusice 時間: 2025-3-26 01:25
Student Days at Dorpat University,erested in acquiring wealth and lands for themselves: their government of the conquered regions was corrupt and cruel.. Sergei Eisenstein cast them as the villains in his film epic . (1938). Eventually, many of them settled in Prussia, turning it into a Germanic state.作者: 強化 時間: 2025-3-26 06:39
Measuring the Sky,ny astronomers were striving for this goal, the achievement of which depended on the availability of sufficiently accurate instruments. As Europe recovered from the Napoleonic wars, such instruments were made --especially by Fraunhofer, who made those used by both Wilhelm and Bessel in their success作者: 口訣法 時間: 2025-3-26 09:03
The Early Pulkovo Years,lities like the supervision of the Cathedral Park or of the University Fire Service, that he had had at Dorpat. Undoubtedly, Wilhelm withdrew from observing partly in order to publish his earlier work. The . was published just before the move to Pulkovo, but the third volume of Wilhelm’s great trilo作者: DEI 時間: 2025-3-26 13:25 作者: 描繪 時間: 2025-3-26 20:22 作者: 巨頭 時間: 2025-3-26 21:11
Book 1988y in Russian, in 1964, to mark the centenary of Wilhelm‘s death. This had a limited edition, and my efforts to obtain a copy failed. Neither work has, in its entirety, been translated into English, although Michael Meo of Oakland, California, and Kevin Krisciunas of Hilo, Hawaii, have kindly made av作者: 黃油沒有 時間: 2025-3-27 03:26
Alan H. Batten the simplest extension of complex numbers, for a complete formalization of the kinematics in the Minkowski space-time..Moreover, from this formalization the understanding of gravity comes as a manifestation of curvature of space-time, suggesting new research fields..978-3-642-17976-1978-3-642-17977-8Series ISSN 2191-5423 Series E-ISSN 2191-5431 作者: sulcus 時間: 2025-3-27 07:10
Alan H. Batten the simplest extension of complex numbers, for a complete formalization of the kinematics in the Minkowski space-time..Moreover, from this formalization the understanding of gravity comes as a manifestation of curvature of space-time, suggesting new research fields..978-3-642-17976-1978-3-642-17977-8Series ISSN 2191-5423 Series E-ISSN 2191-5431 作者: 世俗 時間: 2025-3-27 11:10 作者: FRAX-tool 時間: 2025-3-27 14:46
0067-0057 work has, in its entirety, been translated into English, although Michael Meo of Oakland, California, and Kevin Krisciunas of Hilo, Hawaii, have kindly made av978-94-010-7798-9978-94-009-2883-1Series ISSN 0067-0057 Series E-ISSN 2214-7985 作者: 罐里有戒指 時間: 2025-3-27 20:46 作者: conjunctivitis 時間: 2025-3-27 22:17 作者: 責怪 時間: 2025-3-28 03:39
Alan H. Battencombined approach is illustrated with an application to the question of economical preference between customers and goods..A common language able to represent different types of uncertainties is useful because it allows us to define the uncertainties using simple entities and to compare different ty作者: inhumane 時間: 2025-3-28 07:37 作者: 有雜色 時間: 2025-3-28 11:36 作者: 歡呼 時間: 2025-3-28 15:33
Alan H. Battenovide an ideal “case study.” This place has been exposed to constant processes of building up unlike any other, wearing down and reshaping. But it is not the romantic vision of an “architecture without architects” that is focused on here, but rather the deconstruction of the landscape and the geomet作者: 替代品 時間: 2025-3-28 20:52 作者: 聲明 時間: 2025-3-28 23:56 作者: 飛鏢 時間: 2025-3-29 03:33 作者: Mendacious 時間: 2025-3-29 09:16
Alan H. Battenovide an ideal “case study.” This place has been exposed to constant processes of building up unlike any other, wearing down and reshaping. But it is not the romantic vision of an “architecture without architects” that is focused on here, but rather the deconstruction of the landscape and the geomet作者: Communal 時間: 2025-3-29 11:38
Alan H. Battenation: what, I ask you, do the terms “geometry” and “l(fā)ight” actually mean to us and how might a causal link, in the sense of the geometry of light — be undertaken, logically and (ideally) entertainingly? Let’s start with the big words: “geometry” and “l(fā)ight.” These are certainly difficult concepts a作者: Carminative 時間: 2025-3-29 16:30 作者: 懲罰 時間: 2025-3-29 20:22 作者: duplicate 時間: 2025-3-30 01:53 作者: 搖曳的微光 時間: 2025-3-30 06:32 作者: 占線 時間: 2025-3-30 11:48 作者: 嚴厲批評 時間: 2025-3-30 14:45 作者: 臭名昭著 時間: 2025-3-30 19:05
Alan H. Battenanalyze “place.” Cappadocia, a landscape in central Anatolia in Turkey, is known for its caves carved out of soft tuff, which contain residential, commercial and sacred spaces. This geological layer is exposed to special erosion that forms particularly deep and steep-walled grooves that are characte作者: 牙齒 時間: 2025-3-30 23:50 作者: 典型 時間: 2025-3-31 02:02 作者: 方舟 時間: 2025-3-31 05:28
Alan H. Battenanalyze “place.” Cappadocia, a landscape in central Anatolia in Turkey, is known for its caves carved out of soft tuff, which contain residential, commercial and sacred spaces. This geological layer is exposed to special erosion that forms particularly deep and steep-walled grooves that are characte作者: Derogate 時間: 2025-3-31 11:25
Alan H. Battenamination of a theme should at least attempt to remove doubts, and indeed should aim, as far as possible, to dispel them. Far too much nonsense has been written already, designed, built and sung for payment, for me to embark upon an allegedly decisive introduction to Arkan Zeytinoglu’s Geometry of L作者: Delirium 時間: 2025-3-31 14:14
Alan H. Battencs.Contains problems of relativistic kinematics.Solves the ".This book provides an original introduction to the geometry of Minkowski space-time. A hundred years after the space-time formulation of special relativity by Hermann Minkowski, it is shown that the kinematical consequences of special rela作者: 有助于 時間: 2025-3-31 17:42
Alan H. Battencs.Contains problems of relativistic kinematics.Solves the ".This book provides an original introduction to the geometry of Minkowski space-time. A hundred years after the space-time formulation of special relativity by Hermann Minkowski, it is shown that the kinematical consequences of special rela作者: 小步舞 時間: 2025-4-1 00:54
Alan H. Battenerence and a guide to important directions in the geometric .The proceedings from the Abel Symposium on Geometry of Moduli, held at Svin?ya Rorbuer, Svolv?r in Lofoten, in August 2017, present both survey and research articles on the recent surge of developments?in understanding moduli problems in a作者: 保守黨 時間: 2025-4-1 02:25 作者: 天文臺 時間: 2025-4-1 09:56 作者: 激勵 時間: 2025-4-1 14:03 作者: FAR 時間: 2025-4-1 17:15
