Engelska

Higher Human Biology [Bok / Häftad]

Biology Standard Level [Bok / Häftad]

It is easy to get mesmerized with freshwater aquariums. Creating an underwater ecosystem is not only a rewarding experience but can also bring much peace and relaxation to your life. They seem easy to care for at the start, but there is more than meets the eye when keeping your freshwater aquarium and pets healthy. This book will guide you through every process of starting an aquarium, maintaining healthy fish and plants, and tips on how to battle common problems. Perfect for beginner hobbyists and longtime aquarium enthusiasts, An Introduction to Freshwater Aquariums makes it easier than ever to set up a beautiful aquarium that family and friends alike can enjoy, not to mention, most importantly, yourself.<br/><br/>Included in this book are full-color photographs that will supply readers with:<br/><br/>- Step-by-step instructions on setting up your aquarium<br/><br/>- Understanding the chemistry and biology involved in keeping a healthy aquarium<br/><br/>- Anatomy and diseases<br/><br/>- Including 70+ of the most popular species of fish, invertebrates and plants, and much more.

This compendious, but very readable, volume by one of the legends of Tibetan Singing Bowl playing has quickly established itself as the definitive study. Particularly useful is the wide scope of the book, which includes not just Tibetan bowls and the techniques used to sound them, but, also, Chinese bells, drilbu and ding-sha, the planets, elements and chakras, cymatics, overtones and partials, nada yoga, mantras, symbolism and the astrology of the bowls, their relation to western music, Pythagoras and Newton and the psychic integrity and true awareness of the bowl user. There is almost nothing that is not here. Although Frank Perry was one of the earliest practitioners of Himalayan Bowls in the 1970s, his music has remained profoundly experimental, so that there are techniques in this book not to be found elsewhere, alongside the clearest and most detailed analysis of how to 'play' the bowls, a combination of simple and technical that shows in Perry's bestselling albums Deep Peace and Celestial Harmonies. Frank's writing is, also, a revelation of his personal contact with living Himalayan Masters, his immersion in esoteric traditions, meditation and mysticism and his understanding of other art forms such as the paintings of Nicholas Roerich, where he is an expert. This new edition of the most important book in its field contains a new appendix on the power of sound and new quotations.

The Skillful Forager [Bok / Häftad]

Collectors have long admired uranium and thorium minerals for their brilliant colors, intense ultraviolet fluorescence, and rich variety of habits and associates. Radioactive minerals are also critically important as our source of nuclear energy. Understanding them is crucial to the safe disposal of radioactive waste. \nThis book provides a systematic overview of the mineralogy of uranium and thorium, generously illustrated with nearly 200 color photos and electron micrographs of representative specimens. Includes an historical discussion of the discovery of radioactive elements and the development of uranium and thorium ore deposits, a discussion of the geochemical conditions that produce significant deposits, and a description of important localities, their geological setting and history. \nMajor occurrences of interest to mineral collectors are arranged geographically. The minerals are arranged systematically, to emphasize how they fit into chemical groups, and for each group a few minerals are selected to illustrate their formation and general characteristics. \nWith the resurgence of interest in nuclear power, this book is an invaluable guide for mineral collectors as well as nuclear scientists and engineers interested in radioactive deposits.