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Helen King

amount of valuable epigraphic evidence, and using astrological manuals. He looks for a "horizontal" view of the healer's social status, by which that status is discovered from the company the healer keeps. Throughout, he draws judicious comparisons with medical groups in the medieval and early mod- ern

Whytt and the Idea of Power

Physiological Evidence as a Challenge to the Eighteenth-Century Criticism of the Notion of Power

Claire Etchegaray

psychological ways. Indeed, identifying the cause does not depend on knowledge of its essence; the cause merely resides in the power to produce particular phenomena, and that is all we can say about it. Being unique and sufficient to produce its effect, the cause provides the psychological satisfaction of an

Michael Nauenberg

“to extend the action of gravity to such great distances as those between the sun and the planets or between the moon and the earth,” 37 while Gottfried Wilhelm Leibniz declared that “the introduction of gravitation of matter towards matter is in effect to return to occult qualities and, even worse

Instruments and Illustration

The Use of Images in Edmund Gunter’s De Sectore et Radio

Hester Higton

, alongside their application in navigation and surveying) or through informal advertisements in books. Generally, when authors spoke of new instrument designs they would include a short note (usually an integral part of the text) to the effect that “this and all other instruments for … can be purchased from

Mark Schiefsky

( hupomochlion ) thole-pin mover ( ho kinôn ) sailor e picture is that of a ship that is wider in the middle than at the bow or stern. In such a vessel, there is a greater length of oar inside the ship for a rower amidships than for one in the bow or stern; hence the greater mechanical effect achieved by the

Kees van Putten

that we encounter several storeys of the “Regnum animale,” with “Homo” inhabiting the top floor all on his own. The mineral and vegetable kingdoms are rendered summarily, as the focus of the Tabula is on the animal kingdom. Horizontal lines, composed of small asterisks, stand out in the typographic

Anthony Turner

Smith have already been described, but even these for daily use were unnecessarily elaborate. All that was needed by the gentlemen consumers of the new clocks was a simple set of tables. These clock- and watch-makers supplied in one of two forms, engraved in the free space of an horizontal sun

Printing and Instrument Making in the Early Modern Atlantic, 1520–1600

The Origin and Reception of Pedro de Medina’s Navigation Manual

Stefano Gulizia

. As a whole, then, we note a remarkable delay effect between the usefulness of Medina’s knowledge in the heat of the dispute at the Sevillian Casa concerning the skills of pilots, and its becoming obsolete as a double effect of temporal distortion and hybrid spatiality. What can we make of this

Fokko Jan Dijksterhuis

impression or stirring of each point one sees, stimulates the tunica arachnoides in such a way that it is felt a long time, this feeling being seeing.” 11 Where exactly this lagging effect takes places is not entirely clear; Beeckman endorsed Kepler’s theory of the retinal image, and the term tunica

Alexis Smets and Christoph Lüthy

deceitful. For there are two abysses that separate the graph from the traditional geometrical proof. e first is consti- tuted by the definition of the horizontal and vertical lines as axes carrying a numerical scale, with the line drawn between the two to express a functional relation to both. Despite all