This is a substantially revised and updated new edition of a classic introductory textbook. Although there are a wealth of cosmology texts at postgraduate level, 'Cosmology' remains the classic introduction to modern cosmology for undergraduates. While designed as the main text for a course given at second or third year level, it is sufficiently self-contained for anyone with school science to understand. There is a strong emphasis on observational cosmology, with introductory chapters on the visible universe, our galaxy and other galaxies and the empirical basis for cosmological theory. After an account of the big bang model, there are chapters on the early stages of the big bang and galaxy formation. Finally, there are chapters on cosmological tests and on alternative theories. One feature of the book is its updated epilogue of twenty controversies in cosmology today. The latest results from the WMAP mission are included and a wealth of new material, including a stronger emphasis on the cosmological constant. It has an extensive glossary and the exercises have been substantially expanded. A stronger emphasis on the physical basis for cosmology is included throughout.

This is a substantially revised and updates new edition of a classic introductory textbook. Although there are a wealth of cosmology texts at postgraduate level, Cosmology remains the classic introduction to modern cosmology for undergraduates. While designed as the main text for a course given at second or third year level, it is sufficiently self-contained for anyone with school science to understand. There is a strong emphasis on observational cosmology, with introductory chapters on the visible universe, our galaxy and other galaxies and the empirical basis for cosmological theory. After an account of the big bang model, there are chapters on the early stages of the big bang and galaxy formation. Finally, there are chapters on cosmological tests and on alternative theories. One feature of the book it its updated epilogue of twenty controversies on cosmology today. The latest results from the WMAP mission are included and a wealth of new material, including a stronger emphasis on the cosmological constant. It has an extensive glossary and the exercises have been substantially expanded. A stronger emphasis on the physical basis for cosmology is included throughout.

Hemp, Cannabis sativa, has been called the world's most versatile plant. Materials made from hemp fiber have been discovered in tombs dating back to 7000 B.C. During the Middle Ages hemp was used to treat fevers, insomnia, and malaria. Columbus's ships had sails of hemp, and during colonial times it was universally grown because its strong fibers made superior ropes, sails, cloth, and paper. In fact, hemp was used for money in most of the Americas from 1631 until the early 1800s, and the original drafts of the Declaration of Independence and the Constitution were written on hemp paper.As a food, the oil from hemp seeds has the highest percentage of essential fatty acids and the lowest percentage of saturated fats. Britain and Canada have recently lifted bans on growing industrial hemp and today it is reappearing in the marketplace in an amazing array of products: from lip-salve, jeans, salad oil, and cheese to paper products, composite fiberboard, and biomass fuel.This illustrated, easy-to-read guide covers all aspects of hemp: - The history of its cultivation worldwide - Its role as a source of renewable energy and as an alternative for paper manufacturing and fossil fuels- Its versatility as a fiber- Its many nutritional and medicinal uses- Examines the physiological and psychological effects of marijuana use in recreation and therapy- A comprehensive resource section includes information on organizations involved in legalizing hemp, product suppliers, and an annotated bibliography.

An encapsulation in nine numbers of all that modern astronomy has learnt about the universe. These cosmic numbers appear to be independent characteristics of our universe and include its age, the Hubble constant (a measure of its rate of expression), and the density of matter in the universe. Only one of the nine numbers is known with real precision, and four of them only poorly known. Difficult ideas like the origin of the elements, the General Theory of Relativity, quantum theory, and the standard model of particle physics, ideas which underpin modern cosmology, are explained in a simple way. While most of what we know has been learnt during the 20th century, Rowan-Robinson provides a historical perspective, paying homage to the achievements of the Greeks, Renaissance astronomers, and the age of Newton. The book ends with predictions of when all nine numbers will be accurately known.

Drawing on exciting discoveries of the last forty years, Night Vision explores how infrared astronomy, an essential tool for modern astrophysics and cosmology, helps astronomers reveal our universe's most fascinating phenomena from the birth of stars in dense clouds of gas, to black holes and distant colliding galaxies, and the traffic of interstellar dust from the formation of our Solar System. While surveying the progress in infrared observation, astronomer Michael Rowan-Robinson introduces readers to the pioneering scientists and engineers who painstakingly developed infrared astronomy over the past two hundred years. Accessible and well-illustrated, this comprehensive volume is written for the interested science reader, amateur astronomer, or university student, while researchers in astronomy and the history of science will find Rowan-Robinson's detailed notes and references a valuable resource.