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The need to treat history of technology as history of ideas is stressed and a definition of philosophy by G.C. Lichtenberg is adapted to serve as a tool for analysing technological change.

A case study of locomotive design is introduced, and the influence of rational mechanics, on the machine‐ensemble or locomotive‐track union, beginning with the work. of L. Carnot, is briefly outlined. The development of industrial thermodynamics from S. Carnot (1824) to H. Riall Sankey (1898) is summarized to serve as a reference for later papers.

The general influence of Mechanical Philosophy, and Thermodynamical Philosophy, on the development of the machine‐ensemble, is traced. It is concluded that the United Kingdom steam‐railway machine‐ensemble was the grand exemplar for technology from 1830 to 1880, after which date American railway practice served as model for railway engineering and business methods, whilst electrotechnology became the exemplary technology.

Mechanical Philosophy shaped the machine‐ensemble throughout the 19th C to a much greater extent than did thermodynamics. First Law Analysis, and the use of improved test methods and concepts as standardized by Sankey, together with the introduction of stationary and controlled road trials improved locomotive performance between 1880 and 1910, but Second Law Analysis was of little significance until the 1920s when attempts were made to reform the classic Stephenson‐Goss archetype which rational method had evolved by 1910.  相似文献   

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《Textile history》2012,43(2):143-162
In this paper I want to tease out threads in the socio-economic narrative of fibre arts by using the case study of the Bluestocking Circle, in particular Elizabeth Montagu (1718–1800), Mary Delany (1700–1788) and Montagu’s sister, Sarah Scott (1721–1795). To contrast these lives through the lens of material culture, we can identify needlework and textiles as a subtle marker of social mobility and disparities in wealth within one social circle (the Bluestockings) and family. Whilst Mary Delany combined scientific interest with technical skills, Elizabeth Montagu commissioned decorative fibre arts, such as her famous feather work, for public display, and her sister Sarah Scott, forced by diminished social and economic circumstances, concentrated on practical dress-making and alteration and appliqué. Both sisters, though born into the same family, thus developed very different textile skill sets. The production of textiles carried class markers in terms of what kind of work was produced and what kind of materials and techniques were used. Thus, fibre arts, like fashion, were ‘an emblem of material self-advancement, [and] … a badge of moral worth’ (John Styles, The Dress of the People (New Haven: Yale University Press, 2007), p. 60).  相似文献   

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郭店简本《老子》乙中的一段话里有“ 、赛、 ”三个字与今本、帛书本有明显不同。作者从字音、字形、字义的分析入手,佐以典籍例证,并结合文义与方言的考察,对此差异作出解释。  相似文献   

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本文对王英志教授选注的《清人绝句五十家掇英》中17处注释和点评错误,逐一予以分析、探讨。  相似文献   

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In his book Negara: The Theatre‐state in Nineteenth‐century Bali (1980), Clifford Geertz argued that ceremonial display, rather than material power, was the real basis and indeed the purpose of pre‐colonial states in Bali, and by extension South East Asia. This article argues, on the basis of historical and ethnographic evidence from one of these kingdoms, that he was largely wrong about pre‐colonial Bali, but that, ironically and presciently, his model makes increasing sense in early twenty‐first century Bali. The article also discusses the reasons for this and finally suggests a more dynamic model based on Bourdieu’s metaphor of material and symbolic capital, which seeks to bring Geertz’s essentially static model to historical life.  相似文献   

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Research on the peri‐urban zones of African cities since the mid‐1980s has focused around three main themes, these being peri‐urban agriculture as a survival strategy, debates about the relative efficiencies of peri‐urban agriculture, and the question of production priorities. Drawing on recent evidence from Dar‐es‐Salaam in Tanzania, this paper suggests that a combination of structural adjustment measures and the eased economic crisis in Tanzania has changed conditions, the result of which has been the increasing commodification of land in the peri‐urban zone during the 1990s. This has turned the peri‐urban zone more into a zone of investment and economic opportunity, rather than a zone of survival, with the result that the poorer urban groups are being increasingly excluded. A further complication concerns confusion arising out of current Tanzanian land law, and particularly the tensions between customary and statutory law.  相似文献   

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The international community has hailed South African state president, F.W. de Klerk, a ‘liberator’. De Klerk liberalised the political process and deracialised aspects of state and society. But how committed to racial reform are be and his government? The regime's policies, strategies and tactics over the last two years raise many concerns that the international community has either baulked or simply ignored. The argument that the government must be rewarded and encouraged is fallacious. The South African government reacts only to pressure. The international community acted prematurely by lifting some sanctions and is undermining the prospects for a post‐apartheid society based on equal rights.  相似文献   

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