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1.
Georg Simon Ohm's work in the field of electricity led to what is now considered to be the most fundamental law of electrical circuits, Ohm's Law. Much less known is that only months earlier, Ohm had published another law—one that differed significantly from the now accepted one. The latter entailed a logarithmic relation between the length of the conductor and a parameter that Ohm called “loss of force.” This paper discusses how Ohm came up with an initial law that he felt compelled to correct a few months later. We analyze Ohm's publication as well as his laboratory notes, relating them to our own laboratory experiences while using the replication method to study his work. We also discuss the conceptual background of Ohm's work. We conclude that he was significantly influenced by French studies in the field of electricity, most notably the ones by Charles Augustin Coulomb.  相似文献   

2.
Dwight Lyman Moody (1837–1899) established the blueprint for modern evangelical revivalism. He targeted a broad audience and so avoided contentious points of theology and local political issues. The result was that how Moody was interpreted by those who heard him is often more revealing than the content of his addresses. Moody's three evangelistic campaigns in southern Ireland (1874, 1882–1883, 1892) offer a suggestive case study of how his brand of modern revivalism was accepted and challenged in a particular context. His first tour was significant because it was the first time he had worked in a location with a Catholic majority; his second and third missions took place against a background of political unrest associated with the growing demand for Irish “Home Rule”. This article examines the effect of Moody's brand of modern revivalism on unity amongst southern Ireland's protestant minority. It also investigates the impact of Moody's missions on Catholic Ireland, and the extent to which he was able to transcend religio-political divisions. It demonstrates that Moody promoted evangelical unity yet generated friendly criticism as well as opposition from Protestants, and that the efforts to convert Catholic Ireland that he stimulated provoked a variety of responses that ranged from tolerance to outright hostility.  相似文献   

3.
曾由幕府出身的李鸿章受命招募淮军伊始即开始建立自己的幕府,此后随着其政治地位的不断提高,幕府班子也越来越庞大,30余年间一直常盛不衰。家庭背景、个人出身、入幕方式等方面的不同显示了李鸿章幕府的庞杂性。以1870年8月调任直隶总督为界,前期李鸿章幕府以履行军事职能为主,主要由其同乡、同学、亲属、朋友、原曾国藩幕僚和上海官绅组成,基本上是以传统的旧式人才为主的,不少人在思想观念上仍属于守旧派;后期李鸿章幕府的职能转向以行政事务为中心,为此而延揽一大批具有办理工矿企业、海防、教育、外交等方面专长的近代人才,旧式幕府成员也有一部分受西学影响而发生转化。甲午战争以前,李鸿章幕府可以说是中国当时独一无二的近代人才库。  相似文献   

4.
Abstract

Each month in Britain marks a further, official, distancing from the past and its memorials, as we move closer to the selected Millennium marker. Heritage has a particularly low profile at present with policies for destruction of the House of Lords encouraging increasing ridicule aimed at legacies from the past. In terms of media coverage, at least, the heritage bubble has burst, as indeed it had to. As soon as modest, individual or community, breaths were marshalled into corporate puff, the sheer size of the national preservation and presentation enterprise hinted at its own demise. Nicholas Howard, he of Castle Howard, provided an appropriate caution in 1993, when he noted:  相似文献   

5.
In a talk given at Zurich in the late 1940s, Hermann Weyl discussed Ferdinand Gonseth's dialectical epistemology and considered it as being restricted too strictly to aspects of historical change. His experiences with post-Kantian dialectical philosophy, in particular Johann Gottlieb Fichte's derivation of the concept of space and matter, had been a stronger dialectical background for his own 1918 studies in purely infinitesimal geometry and the early geometrically unified field theory of matter (extending the Mie-Hilbert program). Although now Weyl distantiated himself from the speculative features of his youthful philosophizing and in particular from his earlier enthusiasm for Fichte, he again had deep doubts as to the cultural foundations of modern mathematical sciences and its role in material culture of high modernity. For Weyl, philosophical «reflection» was a cultural necessity he now turned towards Karl Jaspers' and Martin Heidegger's existentialism to find deeper grounds, similar to his turn towards Fichte's philosophy after World War I. The discussion in the late 1940s can be read as a kind of post-World-War-II «Nachtrag» to Weyl's more widely known philosophical comments on mathematics and the natural sciences published in the middle of the 1920s.  相似文献   

6.
This article seeks to dispel the popular myth that Pope Gregory X (1271–6) wanted to change the government of the kingdom of Jerusalem by putting Charles of Anjou on its throne through the purchase of the claim of Maria of Antioch. A study of the Angevin chancery records – little used by crusade historians – demonstrates that Charles had an interest and influence in the kingdom before Gregory became pope. An examination of Gregory's papal registers shows that he consistently treated Hugh of Lusignan as king of Jerusalem and that the pope had no desire for anything to disrupt the peace in Christendom that he deemed necessary for his crusade.  相似文献   

7.
Although Schopenhauer is usually described as a philosopher of pessimism, this article examines the extent to which The World as Will and Representation is concerned, not only with metaphysics, but also with social critique; and the positive, indeed ‘optimistic’, implications such a reading might have for an understanding of Schopenhauer's aesthetics. Schopenhauer's philosophy contains a moral or ethical element, which means that, even if he regarded life as ‘an unpleasant business’, it would be wrong to conclude that he had no appreciation of the world as a locus for practical activity. Thanks to the cultural impact of Weimar Classicism and its controversy with the Romanticism of Jena and elsewhere, as well as through his personal acquaintance with Goethe, Schopenhauer inevitably came into contact with Schiller's aesthetic theories, which provide an indispensable background to understanding what is at stake in Schopenhauer's own aesthetics. Schopenhauer's emphasis on the impermanency of pleasure can be seen to underscore the ethical imperative to pay attention to our own life, and to question, in the most concrete, down-to-earth terms, our representation of our life and what, in life, we will.  相似文献   

8.
After extensive experimentation during the 1790s, Alexander von Humboldt remained skeptical about “animal electricity” (and metallic electricity), writing instead about an ill-defined galvanic force. With his worldview and wishing to learn more, he studied electric eels in South America just as the new century began, again using his body as a scientific instrument in many of his experiments. As had been the case in the past and for many of the same reasons, some of his findings with the electric eel (and soon after, Italian torpedoes) seemed to argue against biological electricity. But he no longer used galvanic terminology when describing his electric fish experiments. The fact that he now wrote about animal electricity rather than a different “galvanic” force owed much to Alessandro Volta, who had come forth with his “pile” (battery) for multipling the physical and perceptable effects of otherwise weak electricity in 1800, while Humboldt was deep in South America. Humboldt probably read about and saw voltaic batteries in the United States in 1804, but the time he spent with Volta in 1805 was probably more significant in his conversion from a galvanic to an electrical framework for understanding nerve and muscle physiology. Although he did not continue his animal electricity research program after this time, Humboldt retained his worldview of a unified nature and continued to believe in intrinsic animal electricity. He also served as a patron to some of the most important figures in the new field of electrophysiology (e.g., Hermann Helmholtz and Emil du Bois-Reymond), helping to take the research that he had participated in to the next level.  相似文献   

9.
10.
Abstract

Thomas Traherne has often been seen as a mystic detached from the turbulence of his period. Recent scholarship has attempted to place him more firmly in context. This article contributes to this trend in arguing that Traherne's late works, especially Commentaries of Heaven, were shaped by the pressure of responding to Thomas Hobbes's Leviathan. Though Traherne makes only one direct reference to Hobbes, his idiosyncrasies in thought, argument, and mode of expression are all fundamentally influenced by the need to counter Hobbes's account of ethics, metaphysics, and language. Traherne is particularly concerned to assert and display an ardent realism against Hobbes's nominalism. In doing so, he creates a complicated play of rhetorical figures, especially abusio or catachresis, as embodying theological commitments. This both places Traherne more clearly against the background of the intellectual history of the period in which he lived, and demonstrates his particularity as a writer.  相似文献   

11.
“正当的历史观”:论李济的考古学研究与民族主义   总被引:1,自引:0,他引:1  
查晓英 《考古》2012,(6):82-92
张光直曾指出,李济的考古学研究在以下几个方面产生了"特别深远的影响":坚持使用第一手科学取得的经验材料、主张考古遗物的分类应以可定量的有形的东西为基础、从文化人类学的观点出发对考古资料作解释、不把对中国问题研究的视野局限于中  相似文献   

12.
Thanks to President Trump's controversial interview in which he described the Montenegrin people as very aggressive, suggesting that Montenegro could be the cause of a third world war, this small Balkan nation got more attention than it had ever had before. Effectively, Trump exaggerated a historical stereotype of Montenegrins and based his comment on Montenegro's political behaviour from several centuries ago when they developed a warlike ethos. How this awareness of Montenegro's aggressive nature as a warrior people made its way to Donald Trump and how exactly he thinks Montenegrin bellicosity could be the cause of a third world war, we can only speculate. Montenegro has fewer than 700,000 inhabitants. The Montenegrin army counts some 1,800 soldiers. Most of the soldiers in active service see the job as a secure source of income, not a chance to prove their combat skills. Montenegro is therefore most unlikely to be the source of aggression itself. Starting from President Trump's statement regarding Montenegro, in this article, the author problematizes the historical roots of Montenegrin traditional masculinity, the reasons why the question of NATO membership still provokes controversies over Montenegrin identity and the position of Montenegro in contemporary geopolitics.  相似文献   

13.
《前秦建元籍》是目前所见最早的纸本户籍,其第三栏登载的是每户的赀产状况,而非财产转移的记录。该文书标明三月籍,不同于秦汉时期的八月造籍和唐代的正月造籍,这可能与当时特定的历史背景有关。该籍中户主的籍贯分别注明州、郡、县、乡、里,与秦汉三国时期的户籍简只注明里名有很大差异,说明纸本户籍不再局限于保存在乡、县,而是要进一步上呈郡、州,直至中央机构。从登载的内容和统计的重点看,《前秦建元籍》与走马楼户籍简中的凡口若干一类性质相近;但以往的户籍简是一年更造,该籍与南朝户籍则是数年一造,据此可以推测当时的纸本户籍背后已有每年度编造的计帐类文书存在。  相似文献   

14.
藏淑英 《人文地理》1992,7(2):26-30
本文基本上沿用著名规划思想家Lewis. Mumford著述规划思想的体系,把十六世纪以来出现的规划思想归结为六种类型:形式规划、实用规划、浪漫规划、乌托邦规划、技术规划和有机规划;并进行了简要的评价。  相似文献   

15.
丁三青 《史学月刊》2003,1(9):68-74
对于自由主义者张君劢来说,他同意民社党出席1946年由国民党一手包办的“国大”,是一个极其痛苦的抉择。他之所以这样做,客观原因.一是民社党生态的困窘.二是国民党投其所好.百般拉拢;主观原因.一是他的充满矛盾的自由主义理念。二是他的“宪法之父”的“宪政情结”.三是他的人格的分裂与异化。  相似文献   

16.
In this paper, our purpose is to show what George Berkeley really said about ethics and the background conditions of religious life. The point is that true happiness is only possible in a religious sense; it means happiness in afterlife. The major threat to this is freethinking, or what we see as emerging enlightened modernism. His rather quixotic fix against freethinking shows the man as he is behind all the conventional panegyrics. He is a real Anglican soldier who anticipated but never admitted a critical defeat in the most important of all battles. Interest in George Berkeley’s life’s work has been exceptionally selective. Yet his revolutionary immaterialism is only an early episode in his struggles towards a better society and religious life for all the people, regardless of their denomination. From this point of view, Alciphron is central. But he also develops his ethical ideas in his various minor writings, which have been largely overlooked.  相似文献   

17.
Recognizing that the vogue of postmodernism has passed, Simon Susen seeks to assess whatever enduring impact it may have had on the social sciences, including historiography. Indeed, the postmodern turn, as he sees it, seems to have had particular implications for our understanding of the human relationship with history. After five exegetical chapters, in which he seems mostly sympathetic to postmodernism, Susen turns to often biting criticism in a subsequent chapter. He charges, most basically, that postmodernists miss the self‐critical side of modernity and tend to overreact against aspects of modernism. That overreaction is evident especially in the postmodern preoccupation with textuality and discourse, which transforms sociology into cultural studies and historiography into a form of literature. But as Susen sees it, a comparable overreaction has been at work in the postmodern emphasis on new, “little” politics, concerned with identity and difference, at the expense of more traditional large‐scale politics and attendant forms of radicalism. His assessment reflects the “emancipatory” political agenda he assigns to the social sciences. Partly because that agenda inevitably affects what he finds to embrace and what to criticize, aspects of his discussion prove one‐sided. And he does not follow through on his suggestions that postmodernist insights entail a sort of inflation of history or historicity. Partly as a result, his treatment of “reason,” universal rights, and reality (including historiographical realism) betrays an inadequate grasp of the postmodern challenge—and opportunity. In the last analysis, Susen's understanding of the historical sources of postmodernism is simply too limited, but he usefully makes it clear that we have not put the postmodernist challenge behind us.  相似文献   

18.
Academician N.I. Vavilov had an international reputation as a scientist, agronomist, botanist, geneticist, plant breeder, explorer for wild progenitors of cultivated plants, selector of new crop varieties, organizer of expeditions, administrator of a large research institute, and a statesman. Beginning in 1916 in collection of crop varieties in Iran and the Pamirs, he personally explored large segments of the earth. In 1926 he published his famous study on centers of origin of cultivated plants. While head of the Institute of Applied Botany and New Crops, he organized many expeditions to search for new varieties of crops and their wild ancestors and established an international collection of seeds. While President of the Geographical Society (1931-1940) he arranged to have the society transferred from the People's Commissariat of Education of the RSFSR to the Academy of Sciences of the USSR, thus transforming it from the Russian to the All-Union Geographical Society. He presented many lectures to the Society and greatly expanded its program of public lectures. But while on a scientific expedition to the western Ukraine, he was arrested on August 6, 1940. “An unforgiveable crime was committed. There has hardly been a more tragic fate since Galilee: the man who sought to give bread to the people died of starvation… He was a hero who gave his life for his scientific beliefs” (translated by H. L. Haslett, Birmingham, United Kingdom).  相似文献   

19.
20.
In this article I deal with the compositional history, geographical background and possible historical setting of Judges 4-5. I propose that the original heroic, oral material behind these chapters represents two different traditions: One (embedded in Chapter 4) originated in the area of Mount Tabor and the hills to its east and northeast and had the city of Anaharath (the name behind the pun or polemic twist of “Harosheth-ha-goiim”) at its core. The other (part of Chapter 5, 19-22) came from the southwestern Jezreel Valley. These traditions represent memories of turbulent 10th century BCE events—the fall of the last of the late-Canaanite city-states and the take-over of the region by highlanders (Israelites) just before, or in very early days of, the rise of the Northern Kingdom. They were put in writing for the first time by a North Israelite author in the first half of the 8th century. This author had only vague knowledge of the western valley tradition (Chapter 5); hence while composing the early song, he “imported” details from Chapter 4, merged the two tales into one account, and “expanded” both to portray a broad (North) Israelite scene. A Deuteronomistic author of the late 7th century BCE inserted the frames characteristic of the Book of Judges, harmonized Chapter 4 with the Jabin story in Joshua 11, included other “explanatory” notes and entered the divine intervention in Chapter 4. A Deuteronomistic author also introduced the adoration of YHWH segments in Chapter 5.  相似文献   

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