What makes the sun rise and set? Our planet is spinning in a universe of sun, moon, and stars. See how a day unfolds in one family's backyard in this story of Earth and sun.
‘Accompanied by NASA photographs and Dorros’s colorful, lively drawings, the text explains the Earth’s rotation in clear and simple terms. An experiment using a lamp as the ‘sun’ further clarifies the principles introduced.’ —BL.
In this moving and provocative anthology, the bestselling author of The Book of Qualities presents poems, myths, and prayers celebrating the fundamental cycle of life--night into day, sun and moon, and dark into light. Embellished with Gendler's own evocative and brilliantly vivid art.
The Cycle Of Day And Night by Namkhai Norbu is a practical guide to a fundamental practice of the Dzogchen system of Tibetan Buddhism, presented in a clear and direct manner, written by an acknowledged contemporary master of this ancient tradition. Central to Dzogchen, the Great Perfection, is contemplation-the immediate experience of the primordial state of the individual, the unconditioned nature of the mind. This nature of the mind transcends the specific contents of mind, the incessant flow of thoughts reflecting our social, cultural, and psychological conditioning. Based on the teaching by Garab Dorje, the first human master of the Dzogchen lineage, The Cycle Of Day And Night gives a translation of the author's Tibetan Text, together with a commentary drawn from the author's extensive oral explanations. Actual methods are given for entering into contemplation and integrating it with our activities during the 24 hour cycle of day and night. Midwest Book Review
Day follows night. Night comes after day. What makes this cycle of days and nights happen? Through beautiful photos and spare text, beginning readers will learn about the basic patterns of the Sun and Earth and what causes day and night.
Millions of trees live and grow all around us, and we all recognize the vital role they play in the world’s ecosystems. Publicity campaigns exhort us to plant yet more. Yet until recently comparatively little was known about the root causes of the physical changes that attend their growth. Since trees typically increase in size by three to four orders of magnitude in their journey to maturity, this gap in our knowledge has been a crucial issue to address. Here at last is a synthesis of the current state of our knowledge about both the causes and consequences of ontogenetic changes in key features of tree structure and function. During their ontogeny, trees undergo numerous changes in their physiological function, the structure and mechanical properties of their wood, and overall architecture and allometry. This book examines the central interplay between these changes and tree size and age. It also explores the impact these changes can have, at the level of the individual tree, on the emerging characteristics of forest ecosystems at various stages of their development. The analysis offers an explanation for the importance of discriminating between the varied physical properties arising from the nexus of size and age, as well as highlighting the implications these ontogenetic changes have for commercial forestry and climate change. This important and timely summation of our knowledge base in this area, written by highly respected researchers, will be of huge interest, not only to researchers, but also to forest managers and silviculturists.
"What if?" questions stimulate people to think in new ways, to refresh old ideas, and to make new discoveries. In What If the Earth Had Two Moons, Neil Comins leads us on a fascinating ten-world journey as we explore what our planet would be like under alternative astronomical conditions. In each case, the Earth would be different, often in surprising ways. The title chapter, for example, gives us a second moon orbiting closer to Earth than the one we have now. The night sky is a lot brighter, but that won't last forever. Eventually the moons collide, with one extra-massive moon emerging after a period during which Earth sports a Saturn-like ring. This and nine and other speculative essays provide us with insights into the Earth as it exists today, while shedding new light on the burgeoning search for life on planets orbiting other stars. Appealing to adult and young adult alike, this book is a fascinating journey through physics and astronomy, and follows on the author's previous bestseller, What if the Moon Didn't Exist?, with completely new scenarios backed by the latest astronomical research.
The statistics are powerful and alarming: Perhaps as many as 6 million Americans suffer from night eating syndrome, or NES, a newly identified eating disorder which describes behavior patterns in which an individual obsessively consumes more than half of his or her daily caloric intake after eight o'clock in the evening. More significant is the further finding that more than 33 percent of morbidly obese individuals, persons who are 100 or more pounds overweight, are affected by this disorder. Experts agree that NES shares characteristics of not only eating disorders but also sleep and mood disorders. Sufferers tend to exhibit symptoms such as feelings of anxiety and guilt, insomnia, or interrupted sleep. Typical NES behaviors include absent appetite during the day, a consistent pattern of eating more food after dinner than during the meal itself, and recurrent episodes of waking and eating throughout the night. This book offers a step-by-step strategy for managing and overcoming this disorder. From this book, you will first learn to identify the signs of NES, and then use journaling exercises to discover what automatic thoughts surround your night eating. Having identified the problematic behaviors, you'íll find out how to break theses patterns with healthier food choices, more structured mealtimes, and a series of relaxation and visualization techniques.
Hal is a boy with a very important mission from Earth: "Please find us the Sun – it has gone from the sky." Can Hal find the Sun before he comes back down to Earth with a bump? An out-of-this-world story that will take you on an exciting voyage through our solar system. Download the full eBook and explore supporting teaching materials at www.twinkl.com/originals Join Twinkl Book Club to receive printed story books every half-term at www.twinkl.co.uk/book-club (UK only).