history

history

Charisma, cannabis, and the crossing of Africa

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This essay, based on a chapter from a forthcoming study of the exploration of Central Africa, tells the story of the encounter between the German travelers Paul Pogge and Hermann Wissmann and a charismatic extatic cult or movement, the 'Children of Hemp.

history

Sex, death, and evolution in proto- and metazoa, 1876-1913

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In the period 1875-1920, a debate about the generality and applicability of evolutionary theory to all organisms was motivated by work on unicellular ciliates like Paramecium because of their peculiar nuclear dualism and life cycles. The French cytologist

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Medicine and hagiography in Italy c.800 c.1000

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A vast range of sources, from chronicles, hagiography and the liturgy to medical manuscripts and charters, is at our disposal for the study of health and healing in Italy between the ninth and eleventh centuries. What is needed in order to exploit this ma

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Reading 'Dutch':: A review in three parts

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A meditation on Dutch by Edmund Morris, the controversial memoir-biography of Ronald Reagan, that uses some of the experimental techniques that appear in the book. The first part is the description of a scene, in screenplay form, in which I have a convers

Literacy, reading, and writing in the medieval West
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Literacy, reading, and writing in the medieval West

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Over the last quarter century, a plethora of studies on literacy, reading and writing in medieval Europe have contributed significantly to our understanding of medieval society and culture. Nevertheless the sheer number of these studies and their authorsh

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Causality and the arrow of classical time

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It is claimed that the 'problem of the arrow of time in classical dynamics' has been solved. Since all classical particles have a self-field (gravitational and in some cases also electromagnetic), their dynamics must include self-interaction. This fact

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Modelling extended extragalactic radio sources

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This paper examines the process of modelling a complex empirical phenomenon in modern astrophysics: extended extragalactic radio sources. I show that modelling is done piecemeal, addressing selected striking or puzzling features of that phenomenon separat