The theories of reproduction that emerged at the end of the eighteenth century exhibited a range in experimental thinking about concepts of gender and sexuality. This essay focuses on the work of a writer who proposed an unusual alternative to polarity-based ideas of reproduction. Johann Wilhelm Ritter was a physicist and friend to the German Romantics and someone whose writing also shares many interests with German Naturphilosophie. The essay discusses how, inspired by ideas from the alchemical tradition, Ritter challenged conventional (...) thinking about reproduction in two significant ways: by linking it to the idea of rotation, and by using the figure of the androgyne to understand reproductive models in terms of triads, rather than oppositional pairings. A further objective of this essay is to consider which aspects of the alchemical tradition proved the most useful for Ritter’s experimental thinking and to show how he integrated them with reflections on contemporary scientific developments around 1800. (shrink)

It is tempting to see in the life of Archimedes an event that could serve as a foundational moment to the myth of the Archimedean point, where the promised firm point from which to move the earth is itself given a basis and physical context for exposition. As earthbound as Archimedes himself, this foundation is not celestial – not a point in the far reaches of space – but rather terrestrial in nature, located in proximity to the border of land (...) and sea. It is the moment when Archimedes the mathematician launches a half-built ship with the aid of one of his inventions. Further details and further interpretations are open to debate. The ship in question, the Syracusan, seems to have been no ordinary one. The .. (shrink)

There is no authoritative biography of Archimedes, but there are moments from his life which, apocryphal or not, have become the stuff of legend. These include accounts of Archimedes running naked through the streets after realizing that his body displaces water in the bath , how he sat musing over diagrams in the sand as sword-bearing Romans descended upon him during a siege of Syracuse, and of course, his mechanically-informed claim that a firm resting place is all he would need (...) to dislodge the world from its axis. This is the birth of the Archimedean point, which latter-day interpretations craft into a figure of thought that works according to the mechanical principle it describes: effortlessly, it .. (shrink)

The lever appears to be a very simple object, a tool used since ancient times for the most primitive of tasks: to lift and to balance. Why, then, were prominent intellectuals active around 1800 in areas as diverse as science, philosophy, and literature inspired to think and write about levers? In The Lever as Instrument of Reason, readers will discover the remarkable ways in which the lever is used to model the construction of knowledge and to mobilize new ideas among (...) diverse disciplines. These acts of construction are shown to model key aspects of the human, from the more abstract processes of moral decision-making to a quite literal equation of the powerful human ego with the supposed stability and power of the fulcrum point. (shrink)