Metaphysicians speak of laws of nature in terms of necessity and universality; scientists, in terms of symmetry and invariance. In this book van Fraassen argues that no metaphysical account of laws can succeed. He analyzes and rejects the arguments that there are laws of nature, or that we must believe there are, and argues that we should disregard the idea of law as an adequate clue to science. After exploring what this means for general epistemology, the author develops the empiricist (...) view of science as a construction of models to represent the phenomena. (shrink)

THE PRINCIPLE OF SUPERPOSITION. The need for a quantum theory Classical mechanics has been developed continuously from the time of Newton and applied to an ...

Inviting a reappraisal of the status of scientific knowledge, Andrew Pickering suggests that scientists are not mere passive observers and reporters of nature.

Feyerabrend argues that intellectual progress relies on the creativity of the scientist, against the authority of science.

While acknowledging its theory-ladeness, Chalmers (history and philosophy, U. of Sydney) defends the objectivity of scientific knowledge against those critics for whom such knowledge is both subjective and ideological.

Drawing on diverse historical cases, this paper describes and examines various aspects of a modality of scientific appraisal which has remained largely unexplored, theory pursuit. Specifically, it addresses the following issues: the epistemic and pragmatic commitments involved in theory pursuit, including how these differ from those characteristic of theory acceptance; how the research interests of scientists enter into their pursuit decisions; some of the strategies for the refinement and extension of a theory's empirical abilities which typify theory pursuit; and the (...) need to distinguish between individual and community rationality in contexts of pursuit. (shrink)

In the 1960s, the history and philosophy of science made common cause in the search for universal patterns of theory change: philosophers provided models, historians offered examples. But the two enterprises pulled apart during the 1970s. Now there is a new arena of joint concern. Historians and philosophers are searching for the conditions under which standards of theoretical and experimental demonstration are established. I argue against the picture of these standards as independent of (or reducible to) the context of their (...) introduction. Instead, I suggest that we think of scientific developments as simultaneous solutions to multiple constraints; the constraints issue from domains as diverse as the technical, the aesthetic and the political. (shrink)

The paper argues that renormalization in quantum field theory was not a radically new - and possibly ad hoc - technique to save a badly flawed theory, but rather the culmination of a methodological strategy that physicists had been applying for a long time. The strategy was to obtain reliable results from unreliable theories by making the derivation of the results independent of possible future modifications of the theory. Examples of this practice include Bohr's use of the Correspondence Principle and (...) Heisenberg's S-matrix theory. (shrink)