The Sophists, and the Socratic response they provoked, are considered in order to elucidate issues raised by present-day skill-talk. These issues include: whether skills avoid questions of ends and truth; the existence of general skills, such as critical thinking; the importance of knowledge; skills and the personality; and some implications for teaching and philosophy.

Victor Quinn advocates teaching critical thinking as a curriculum subject. He has accused Professor John E. McPeck, a vehement critic of such proposals, not only of being wrong but also of being in need of such a critical thinking course himself. In this paper we examine the five supposed critical thinking weaknesses of which McPeck is accused and consider what Quinn's arguments tell us about critical thinking, its skills, its priorities and its claims to subject status.

Victor Quinn advocates teaching critical thinking as a curriculum subject. He has accused Professor John E. McPeck, a vehement critic of such proposals, not only of being wrong but also of being in need of such a critical thinking course himself. In this paper we examine the five supposed critical thinking weaknesses of which McPeck is accused and consider what Quinn's arguments tell us about critical thinking, its skills, its priorities and its claims to subject status.

Photonic Crystals is the first book to address one of the newest and most exciting developments in physics--the discovery of photonic band-gap materials and their use in controlling the propagation of light. Recent discoveries show that many of the properties of an electron in a semiconductor crystal can apply to a particle of light in a photonic crystal. This has vast implications for physicists, materials scientists, and electrical engineers and suggests such possible developments as an entirely optical computer. Combining cutting-edge (...) research with the basic theoretical concepts behind photonic crystals, the authors present to undergraduates and researchers a concise, readable, and comprehensive text on these novel materials and their applications. The first chapters develop the theoretical tools of photonic crystals in a broad, intuitive fashion, starting from nothing more than Maxwell's equations and Fourier analysis, and include analogies to traditional solid-state physics and quantum theory. There follows an investigation of the unique phenomena that take place within photonic crystals, at defect sites, and at surfaces and interfaces. The authors offer a new treatment of the traditional multilayer film (a one-dimensional photonic crystal), which allows for the extension to higher dimensions and more complex geometries. After exploring the capabilities of photonic crystals to guide and localize light, the authors demonstrate how these notions can be put to work. (shrink)

From the New York Times-bestselling author of Where Good Ideas Come From and Everything Bad Is Good for You, a new look at the power and legacy of great ideas. In this illustrated volume, Steven Johnson explores the history of innovation over centuries, tracing facets of modern life (refrigeration, clocks, and eyeglass lenses, to name a few) from their creation by hobbyists, amateurs, and entrepreneurs to their unintended historical consequences. Filled with surprising stories of accidental genius and brilliant mistakes-from the (...) French publisher who invented the phonograph before Edison but forgot to include playback, to the Hollywood movie star who helped invent the technology behind Wi-Fi and Bluetooth-How We Got to Now investigates the secret history behind the everyday objects of contemporary life. In his trademark style, Johnson examines unexpected connections between seemingly unrelated fields: how the invention of air-conditioning enabled the largest migration of human beings in the history of the species-to cities such as Dubai or Phoenix, which would otherwise be virtually uninhabitable; how pendulum clocks helped trigger the industrial revolution; and how clean water made it possible to manufacture computer chips. Accompanied by a major six-part television series on PBS, How We Got to Now is the story of collaborative networks building the modern world, written in the provocative, informative, and engaging style that has earned Johnson fans around the globe. (shrink)

Steven Higgins and Vivienne Baumfield have recently attempted to defend the much discussed idea of general thinking skills against attacks from three quarters: what they regard as a priori objections, which they liken to Zeno's paradox that Achilles will not catch the tortoise; domains theories of knowledge, which oppose the idea of thinking skills being general and transcending domains; and the claim that experts use subject specific knowledge, and don't use general thinking skills. We examine these defences and find them (...) flawed and worrying. We conclude that this is a domain in serious need of a priori approaches. (shrink)

Steven Higgins and Vivienne Baumfield have recently attempted to defend the much discussed idea of general thinking skills against attacks from three quarters: what they regard as a priori objections, which they liken to Zeno's paradox that Achilles will not catch the tortoise; domains theories of knowledge, which oppose the idea of thinking skills being general and transcending domains; and the claim that experts use subject specific knowledge, and don't use general thinking skills. We examine these defences and find them (...) flawed and worrying. We conclude that this is a domain in serious need of a priori approaches. (shrink)