Air And Water

Addressing general readers and biologists, Mark Denny shows how the physics of fluids (in this case, air and water) influences the often fantastic ways in which life forms adapt themselves to their terrestrial or aquatic "media."

Everyone depends on clean air to breathe, safe water to drink and healthy soil for growing food. But what if your drinking water is dangerous, your air is polluted and your soil is toxic? What can you do about that? Do you have the right to demand change? Fresh Air, Clean Water: Defending Our Right to a Healthy Environment explores the connections between our environment and our health, and why the right to live in a healthy environment should be protected as a human right. The book features profiles of kids around the world who are taking action and important environmental rights court cases. Hear the powerful stories of those fighting for change.

"A treasure trove of practical magic for both novices and more experienced practitioners...beautifully crafted spells that invoke the alchemy of possibility."—PanGaia A leaf from an oak tree...a wildflower...water from a sparkling stream...dirt from a cool dark cave—these are the age-old tools of natural magic. Born of the earth, possessing inherent power, they await only our touch and intention to bring their magical qualities to life. The four elements are powerful magical tools. Using their energies, we can transform ourselves, our lives, and our world. This much-loved, classic guide offers more than seventy-five spells, rites, and simple rituals you can perform using the marvelous powers of the natural world. Scott Cunningham was a greatly respected teacher and one of the most influential members of the modern Craft movement. A practitioner of elemental magic for twenty years, he wrote more than fifty books, including the seminal Wicca: A Guide for the Solitary Practitioner.

Air and water are everywhere, playing a crucial role in human survival, and the survival of most of the planet. For a young scientist, understanding these integral parts of our world is the first step to understanding larger scientific concepts. From a hands-on approach to water surface tension to understanding air pressure, young readers will discover how both air and water work. Instructions and informative fact boxes help young readers to effectively set up their own experiments and record their findings.

Imagines a village in which there are too many people consuming shared resources and discusses the challenge of handling our world's environment safely.

The book describes the structure, composition and evolution of the Earth, the main geological processes occurring on it, and how some crucial environmental matters that are amply debated in the media (e.g. pollution, greenhouse effect) can be fully understood by placing them in the holistic context of the system Earth as a whole. It provides basic information on a series of key geological issues, from the structure and composition of the Earth to the large-scale processes that characterize our planet, such as rock alteration and sedimentation, magmatism, geomagnetism, seismicity, plate tectonics, cyclical migration of chemical elements through various Earth reservoirs (Geochemical Cycles), and evolution of the planet from Hadean to present. It intends to reach a wide readership, which is interested in our planet and wish to have a general and comprehensive view of its origin, evolution and activity. Potential readership includes undergraduate and advanced undergraduate students in Geology and other scientific disciplines, and any moderately- to well-educated people interested in the surrounding world and eager to gain a basic knowledge of the Earth and to reach an integrated view of how our planet is working.

This is designed to help you develop a deep understanding of the basics so you can teach without fear. Best-selling author Bill Robertson acts as your friendly guide, bringing both wisdom and wit to the study of weather. It offers all the features readers have come to love: accurate explanations, irreverent drawings, and activities that use easy-to-find materials.

While the treatment of water and exhaust gas using ultraviolet (UV) light offers both ecological and economic advantages, information on photo-initiated advanced oxidation technologies (AOTs) has been dispersed among various journals and proceedings until now. This authoritative and comprehensive handbook is the first to cover both the photochemical fundamentals and practical applications, including a description of advanced oxidation processes (AOPs) and process engineering of suitable photoreactors. The author presents various real-world examples, including economic aspects, while many references to current scientific literature facilitate access to current research topics relevant for water and air industries. Throughout, over 140 detailed figures visualize photochemical and photophysical phenomena, and help in interpreting important research results. From the foreword by James R. Bolton (President of Bolton Photosciences Inc., Executive Director of the International Ultraviolet Association (IUVA)): "Prof. Oppenländer is well qualified to write about the AOPs/AOTs, since he has contributed to this literature in a very significant manner. This book will be of considerable value to graduate students, science and engineering faculty, scientists, process engineers and sales engineers in industry, government regulators and health professionals."