Thoroughly revised and updated, this new edition is based on the content of the world-renowned McGraw-Hill Encyclopedia of Science & Technology, Ninth Edition, the most widely used science reference of its kind. Readers will find concise, authoritative, and up-to-date articles on every major field of science and technology -- by authors at the forefront of their fields and including numerous Nobel Prize winners.
Written in clear, simple language understandable to students and general readers, yet with sufficient depth for scientists, educators, and researchers.

Surprising Science Puzzles

A collection of puzzles drawn from unusual situations that occur in science and nature. How can a battleship float in a few hundred gallons of water? Why does a bird cage weigh the same whether the bird is flying or perching? These puzzles are an infuriating blend of the obvious and the elusive.

New Scientist is a weekly international science magazine and website covering recent developments in science and technology for a general English-speaking audience. New Scientist has maintained a website since 1996, publishing daily news. As well as covering current events and news from the scientific community, the magazine often features speculative articles, ranging from the technical to the philosophical.

Critical Realist Activity Theory provides an exciting new contribution to the New Studies in Critical Realism and Education series by showing how the nature of learning is tantamount to the critical realist notion of the dialectic. The science of learning is too important to leave solely to the sciences; it needs philosophy as well. The task of this book is to take a further step and clear the conceptual field for an ontologically grounded view of the science of learning through critical realism, making use of dialectical critical realism and the philosophy of meta-Reality, as well as basic critical realism.