Newton's Metaphysics

Author(s):  
Eric Schliesser

This collection of papers by a leading philosophical Newton scholar offers new interpretations of Newton’s account of space, gravity, motion, inertia, and laws—all evergreens in the literature. The volume also breaks new ground in focusing on Newton’s philosophy of time, Newton’s views on emanation, and Newton’s modal metaphysics. In addition, the volume is unique in exploring the very rich resonances between Newton’s and Spinoza’s metaphysics, including the ways in which Newton and his circles responded to the threat by, and possible accusation of, Spinozism. Seven chapters have been published before and will be republished with minor corrections. Two of these chapters are coauthored: one with Zvi Biener and one with Mary Domski. Two chapters are wholly new and are written especially for this volume. In addition, the volume includes two postscripts with new material responding to critics. A main part of the argument of these essays is not just to characterize the conceptual choices Newton made in developing the structure of theory that would facilitate the kind of measurements characteristic of the Newtonian style, but also to show that these choices, in turn, were informed by intellectual aspirations that brought Newton’s edifice into theological and philosophical conflicts. As these conflicts became acute, these drove further conceptual refinement. Many of the essays in the volume relate the development of Newton’s philosophy to the philosophies of his contemporaries, especially Spinoza and Samuel Clarke.

1996 ◽  
Vol 6 (1) ◽  
pp. 63-87 ◽  
Author(s):  
Tony Lévy

This article analyzes new material on the history of the amicable numbers. It discusses Hebrew texts which throw new light on the diffusion in Medieval Europe of Ṯābit ibn Qurra's (9th century) work. We find Ṯābit's theorem on amicable numbers in a Hebrew translation, made in Saragossa in 1395, of an arithmetical commentary written by Abū al-Ṣalt al-Andalusī (ca. 1068–1134), and also in an original Hebrew text probably written by the Jewish Provençal scholar Qalonymos ben Qalonymos (1287 – after 1329). These texts lend strong support to the surmise that the Arabic tradition concerning amicable numbers could not have remained unknown to European mathematicians before the work of Descartes and Fermat in the 17th century.


Author(s):  
О.Ф. Кудрявцев

Книга Сигизмунда Герберштейна «Записки о Московии» (1-е изд. – 1549 г.) – самое полное и обстоятельное описание Российской страны, сделанное в Европе в эпоху Возрождения. В ней много нового материала, который ее автор, гуманистически образованный европеец, тем не менее, очень часто использовал для иллюстрации старых, закоснелых стереотипов восприятия Руси/Московии/России, сложившихся в гораздо более раннее время. The Herberstein’s work “Rerum Moscoviticarum commentarii” (1st ed. – 1549) is the most full and comprehensive description of Russia made in the Renaissance Europe. It contains a lot of new material, which the author, the humanistically educated European, mainly used nevertheless to illustrate the old, obdurate stereotypes of perception the Rus’/Muscovy/Russia formed in the previous centuries.


Microbiology ◽  
2003 ◽  
Vol 149 (7) ◽  
pp. 1753-1761 ◽  
Author(s):  
Miguel A. De Pedro ◽  
Heinz Schwarz ◽  
Arthur L. Koch

This paper extends, with computer techniques, the authors' previous work on the kinetics of pole wall and sidewall synthesis in Escherichia coli. These findings extend the conclusion that the nascent poles are made of entirely new material and that no new material is inserted into old poles. This requires re-evaluation of ideas in the literature about wall growth and cell division. Mechanisms of various types have been suggested for the growth of Gram-negative rod-shaped bacteria and these will also require major re-evaluation because of the finding, reported here, that the sidewall is made in several modes: patches of new murein, bands of new material largely going circumferentially around the cell, and areas of the sidewall that are enlarged by an intimate and regular admixture of new with the old muropeptides.


1959 ◽  
Vol 32 (5) ◽  
pp. 1475-1586 ◽  
Author(s):  
D. J. Buckley

Abstract On first thought, the properties controlling the behavior of high molecular weight substances would appear to be so overwhelmingly numerous as to defy consolidation and simplification. However, upon analysis, it can be seen clearly that they all reduce to areas of consideration which make up a relatively small group. For elastomers, such a grouping might be as follows. Size Shape Order and Disorder Composition Crosslinked Network Response to Deformation Degradative Reactions This reviewer does not intend to imply that each area can be considered mutually exclusive of any of the others. There is ample evidence of considerable interaction between these areas. Moreover, it is not intended to imply that the approach to elastomeric problems is utterly simple. The complexity within any one of the areas mentioned is well known from the literature on polymers. However, it is suggested that a grouping or classification such as given here can assure a greater clarity of concept and objectivity of analysis and experiment in approaching otherwise obtuse and complicated polymer problems. As each new polymer material comes under research scrutiny in this sense, the general “laws” governing polymer behavior are clarified and extended. This is a result of the fact that each new material usually provides features which invite and encourage research, particularly where uncertainty exists. The ease of butyl type polymers will be reviewed in this sense with two purposes in mind: (1) to define and correlate the knowledge derived from butyl research which has contributed to a better understanding of the principles of polymers, and (2) to suggest (often by inference) areas where potentially fruitful research in the same direction is still possible. This review will consider butyl polymers beyond the polymerization stage. Except where necessary to develop the proposed objectives, the chemistry of polymerization will not be considered. A number of references are recommended to the reader interested in the polymerization aspects. No attempt will be made in this review to consider butyl end uses or the compounding and technological information associated therewith. Some exception to this restriction will be made when the particular property under consideration warrants it. Rather, this review will attempt to show how a development of the basic knowledge of polymer behavior can be put to use in the solution of technological problems.


1917 ◽  
Vol 4 (4) ◽  
pp. 160-168
Author(s):  
Herbert L. Hawkins

During the past seven years I have published several papers based upon preliminary investigations on the anatomy of the Holectypoida, an order of the Euechinoidea which, by general consent, is regarded as transitional between the Regular and Irregular sections of the class. Continued study, aided by increased mental and technical experience, has revealed an ever-increasing number of interesting features in the order, and has made possible more definite and confident surmises as to its affinities with other groups. The series of contributions here commenced is intended to amplify, and in some cases to correct, the statements made in my earlier papers. With very few exceptions the actual descriptions that are given in the former work still seem to be essentially correct, but every fresh examination, even of the same specimens, testifies to the incompleteness of most of the observations hitherto published. New material, better or differently preserved, often draws attention to features overlooked or discarded as unimportant in the examples already studied. No apology is needed for the publication of incomplete descriptions of natural objects, since complete knowledge is as yet nowhere attained. When inaccuracies of observation have been detected, their nature and cause will be stated frankly, accompanied, verbally or not, by suitable contrition.


2012 ◽  
Vol 48 (No. 8) ◽  
pp. 347-352
Author(s):  
M. Vicen ◽  
I. Ubrežiová

The analysis is made in the set of the selected foodstuffs wholesales in the Slovak Republic and shows their differences from the viewpoint of the size (sale place 15 m2–1 300 m2 , storage space 106 m2–6 500 m2 ), number of workers (1–81) and yearly turnover (219 thousand SKK–2 748 thousand SKK). The main part of wholesales is operated by owners (83%) and a small part (17%) is on lease. From the viewpoint of location, the wholesales are situated in the centre of town (50%) and village (27%). The rest is located in the habitations and suburbs of town. The competitive wholesales (43%) are situated in the distance from 11 to 500 m. The highest labour productivity was obtained at the wholesale with location in the suburbs of town and the distance from competitive firms is about 500–1 000 m. Suitable results were achieved in the wholesales on lease with location in the suburbs of towns. The efficiency of wholesales was affected by the main factors, including the number of workers, size of sale place and storage space which determined up to the 92% of the volume of yearly turnover.


Fractals ◽  
1993 ◽  
Vol 01 (03) ◽  
pp. 375-379 ◽  
Author(s):  
JAAP A. KAANDORP

In marine sessile organisms (e.g. sponges and stony-corals), a distinction can be made in organisms that use filter-feeding, light or a combination of both, as a source of energy. In many of these organisms, growth takes place by the addition of layers of new material on top of the preceding growth stages that remain unchanged. The growth process of an organism that uses exclusively light and one that uses only filter-feeding for energy intake, are simulated using an iterative geometric construction in combination with, respectively, a light intensity function and a diffusion equation.


2018 ◽  
Vol 45 ◽  
pp. 00002
Author(s):  
Tomasz Abel

Soil-shell structures have been widely used for many years in road and network constructions where there are collisions of transport linear structures. A benefit of using such structures is the speed of construction and the durability of the materials used. Despite the wide use of different types of materials, in particular steel shells, new material solutions are still being sought. One material that has been used successfully for many years in the construction of underground network facilities is plastic from the group of duroplasts. Composite profiles with cross-sections reaching up to 3.0 m can be used in the construction of pipe culverts. These culverts are not only objects with a circular cross-section shape, but also other shapes with very good hydraulic parameters and high strength parameters. In order to determine the dependence between the strength of a composite shell and the surrounding soil, a series of tests of laboratory models made in a natural scale were carried out. The aim of the research was to determine the possibility of using duroplastic structures as culverts located under traffic routes, and to also determine the scope of cooperation of the structure with the soil medium and their mutual dependencies.


1987 ◽  
Vol 28 ◽  
pp. 18-33
Author(s):  
Jan Renkema

In this article some comments are made on research into business communication as a new vogue in applied linguistics (instead of as enrichment in text linguistics). Critical remarks are also made, in terms of cost-benefit analysis, about the difficulties that liberal arts students have in finding a job within a business setting. The main part of this article is devoted to the writing and rewriting of instruction texts, with an example of the instruction for use of a steam iron. The rewriting techniques for clarifying this text are reduced to the suitability principle and maxims like the maxim of motivation and the maxim of disambiguity. Within this theoretical framework the (re)writing of business texts can be more than an activity for the Muses and will be of benefit to Mercury in enhancing the effectivity of instruction manuals and other texts.


Inorganics ◽  
2019 ◽  
Vol 7 (6) ◽  
pp. 75 ◽  
Author(s):  
Dominikus Heift

The chemical challenge of economically splitting water into molecular hydrogen and oxygen requires continuous development of more efficient, less-toxic, and cheaper catalyst materials. This review article highlights the potential of iron sulfide-based nanomaterials as electrocatalysts for water-splitting and predominantly as catalysts for the hydrogen evolution reaction (HER). Besides new synthetic techniques leading to phase-pure iron sulfide nano objects and thin-films, the article reviews three new material classes: (a) FeS2-TiO2 hybrid structures; (b) iron sulfide-2D carbon support composites; and (c) metal-doped (e.g., cobalt and nickel) iron sulfide materials. In recent years, immense progress has been made in the development of these materials, which exhibit enormous potential as hydrogen evolution catalysts and may represent a genuine alternative to more traditional, noble metal-based catalysts. First developments in this comparably new research area are summarized in this article and discussed together with theoretical studies on hydrogen evolution reactions involving iron sulfide electrocatalysts.


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