Philosophy as a cultural resource and medium of reflection for Hermann Weyl

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.     

Phytolith-rich layers from the Late Bronze and Iron Ages at Tel Dor (Israel): mode of formation and archaeological significance

The presence of many phytolith-rich layers in late Bronze and Iron Age deposits at Tel Dor, Israel, are indicative of specific locations where plants were concentrated. Detailed studies of six of these phytolith-rich layers and associated sediments from Tel Dor show that the phytoliths were derived mainly from wild and domestic grasses. The most common domestic grass was the cereal Triticum aestivum (bread wheat). Three of these layers have a microlaminated microstructure, associated dung spherulites and phosphate nodules; characteristics that all point to the phytolith-rich layers having formed from dung in animal enclosures. In two of the layers, the microlaminated structure is absent while dung spherulites and phosphate nodules are present, suggesting that these too originate from dung that was not deposited in an enclosure. The sixth layer is microlaminated but does not contain spherulites. We thus cannot suggest a parsimonious explanation of its observed properties. Concentrations of burnt phytoliths are present in three locations, implying that dung was either burnt in situ or the ashes from burnt dung were redeposited. The transformation of dung accumulations into phytolith-rich layers involves a loss of organic material and hence a significant reduction in sediment volume, which is clearly apparent in the stratigraphy of some of the locations examined. The volume reduction can be observed in the macrostratigraphy and has important implications with regard to macrostratigraphic interpretation. The presence of abundant phytolith-rich layers on the tell has significant implications for the concept of ‘urbanism’ during these periods.     

Confraternal religion: from liberation theology to political reversal

Heterodox mystics and heretics of any kind can be sometimes dangerous and other times reliable depending upon political situations, as was the case with Bektashis in Ottoman Anatolia or in early independent Albania. The historical anthropology perspective taken in this article appears helpful in revealing that Bektashism is probably the mystical order of Islam that best exemplifies a transformational pattern from a theological and ideological, as well as cultural, social and political, point of view. The system of beliefs and practices related to Bektashism seems to correspond to a kind of liberation theology, whereas the structure of Bektashi groups corresponds more or less to the type of religious organization conventionally known as “charismatic groups”. It becomes understandable, therefore, that their spiritual tendency can meet social, cultural and national perspectives. In turn, when the members of the previously persecuted religious minority have already acquired a degree of religious and political respectability within society at large, the doctrines of heterodoxy and liberation theology fade into the background. In the end, the heirs of the heterodox promoters of spiritual reform and social movement turn into followers and faithful defenders of a legitimate authority. They become the spokespeople for an institutionalized orthodoxy whose support will be sought by the political regime.     

Use of robust methods to determine quadratic surfaces: application to heritage

3D surveys of archaeological elements and the construction of virtual models enable us to reconstruct historical sites. They provide useful data to select specific building processes.Photogrammetry and Terrestrial Laser Scanning (TLS) are the most common techniques to obtain synthetically heritage models. These techniques provide massive data which can only be managed by replacing them by primitive shapes, thereby obtaining more simple models and the explicit geometry of the element. Statistical and robust methods are used for this substitution, thereby avoiding the common errors due to measuring. Of these methods, the most widely used are the least-median-of-squares (LMedS) and the RANSAC method.Another computation method consists in recursive processes based on evolutive-type algorithms to adjust the model to the data captured.This paper describes two surface computation methodologies to determine the modelling of a column shaft located in temple G of the archaeological park of Selinunte (Sicily).     

Conflicting images of the Zuider Zee around 1900: nation-building and the struggle against water

In 1918, the Dutch government decided to enclose and reclaim the Zuider Zee (later called the IJsselmeer). The preceding decades had been marked by broad public debate about the utility and urgency of the project. Around 1900, its proponents constructed images of the region and of the Dutch nation in which the Zuider Zee was no longer a crossroads. They emphasized the backwardness of the area and depicted the sea as a domestic enemy, its violent storms posing a threat to the nation. Cornelis Lely’s Zuider Zee proposal (1891) promised a bright future for both the region and the Netherlands as a whole. The struggle against the water would revitalize the nation (by stimulating nation-building) and modernize its international image (perceived as a picturesque but archaic country). Opponents of the project feared the high costs and developed a counter-image: the Zuider Zee region as heartland of ‘authentic’ Dutch culture, a heritage that would be jeopardized by the project. The article concludes by highlighting the synchronicity of the non-synchronous: the Zuider Zee region was envisioned as a region living in the past, thereby constituting an ‘internal Other’ in a country undergoing rapid modernization around 1900.     

Pour une sociologie de la société transnationale

Proposing a general framework for the study of the emerging transnational society, the article critically surveys predominant disciplinary perspectives in this field, and outlines an approach based on a core/periphery model with oligopolistic competition. Within this general framework, sociology finds its specific subject in the ties that connect human beings across national borders, directly or mediated by transnational institutions. An elaborated and amended version of this approach is illustrated, among others, by the dynamics of cultural globalization and the «world language system».     

Book reviews

Converging Cultures: Art and Identity in Spanish America. Edited by DIANA FANE. Brooklyn: Brooklyn Museum, 1996. Pp. 320.

New World Orders: Casta Painting and Colonial Latin America. By ILONA KATZEW, Curator. New York: Americas Society Art Gallery, 1996. Pp. 144.

Iglesia, Estado y economía. Sighs XVI al XIX. Edited by MARIA DEL PILAR MARTINEZ LOPEZ‐CANO. Mexico: UNAM/Instituto José María Luis Mora, 1995 Pp. 314.

El crédito a largo plazo en el siglo XVI. Ciudad de México (1550–1620). By MARIA DEL PILAR MARTINEZ LOPEZ‐CANO. Mexico: UNAM, 1995. Pp. 208.

The Darker Side of the Renaissance: Literacy, Territoriality, and Colonization. By WALTER D. MIGNOLO. Ann Arbor: The University of Michigan Press, 1995. Pp. xxii, 426.

Entre la retórica y la insurgencia: las ideas y los movimientos sociales en los Andes, Siglo XVIII. Compilado por CHARLES WALKER. Cuzco: Centra “Bartolomé de Las Casas”, 1996. Pp. 362.

Saberes andinos. Ciencia y tecnología en Bolivia, Ecuador y Perú. Editado por MARCOS CUETO. Lima: Instituto de Estudios Peruanos, 1995. Pp. 215.