While the impetus theory is often regarded as a non-Aristotelian theory that could not have emerged within the development of Aristotelianism, I argue that it is essentially Aristotelian. Given the state of the theories of body, movement and sexual reproduction and the development of the theory of the four elements in the Latin West at the end of the thirteenth century, the impetus theory was probably developed as an application to projectiles of Aristotle's theories of the male semen and of family resemblance. In addition, the impetus theory was even a convenient expedient to simplify the Aristotelian theory of movement and prevent it from drifting into non-Aristotelian territory.

This article presents evidence that an anonymous publication of 1573, a Letter sent by a gentleman of England [concerning …] the myraculous starre nowe shyning, was written by Thomas Digges, England's first Copernican. It tells the story of how it arose out of research commissioned by Elizabeth I's privy counsellors in response to the conventional argument of Jean Gosselin, librarian to Henri III of France, that the star was a comet which presaged wars. The text is significant because it seems to contain the observations and opinions that Digges held before he completed his other astronomical treatise, the groundbreaking Alae seu scalae mathematicae. It also casts some light on the development of Digges's radical and puritan views about the star, Copernican astronomy, the infinity of the universe and a belief that the ‘latter days’ of the world had arrived.

Early Victorian analogical arguments were used to order the natural and the social world by maintaining a coherent collective experience across cultural oppositions such as the ideal and material, the sacred and profane, theory and fact. Maxwell's use of analogical argument in ‘On Faraday's lines of force’ was a contribution to that broad nineteenth-century discussion which overlapped theology and natural philosophy. I argue here that Maxwell understood his theoretical work as both a technical and a socially meaningful practice and that embedding his use of analogy in the social and intellectual context of Victorian Britain provides a means of telling a sociocultural history of Maxwell's development of a new cognitive tool: a way of thinking on paper analogous to thinking with objects in the laboratory.

In the late nineteenth and early twentieth centuries, changing social and cultural climates challenged the position of scientists in Western society. Ringer and Harwood have described how scientists reacted by adopting either pragmatist or ‘comprehensive’ styles of thought. In this article, I will show how a group of Dutch intellectuals, including many scientists, came up with an alternative approach to the dilemmas of modernity, and eventually became influential in shaping Dutch society. They combined elements of both styles into what I call a ‘synthetic technocrat’ ideology, a reaction against intellectual and political fragmentation. These ideas were often combined with pleas for educational reform, culminating in a plea for gebildete Tatkraft. I will analyse the development of the synthetic technocrat movement from the late nineteenth century into the 1940s. During this period, the movement became increasingly political in nature, but in a radically different way to comparable movements in other countries, especially Germany.