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In Sundial of the Seasons, beloved New York Times nature writer Hal Borland (1900-1978) guides readers day-by-day through the seasonal changes of the natural world. With humility, wit, and wisdom he celebrates the everyday events of life in the country. This collection of his "outdoor editorials" will bring you daily joy and inspiration.
In Book of Days, beloved nature writer Hal Borland takes readers on an eye-opening day-by-day journey through a year of the outdoor world around us. Neither calendar nor almanac, this delightful natural history "daybook" of mini essays is a treasure trove of fascinating philosophical insights, astute wisdoms, and environmental wonders.
Explains how the earth's movements around the sun and the resulting movement of shadows have been used to tell time. Includes illustrations that pop up or fold out to demonstrate how sundials work.
A rigorous appraisal of sundial science includes mathematical treatment and pertinent astronomical background, plus a nontechnical treatment so simple that several of the dials can be built by children. 106 illustrations.
Sundials, which decorate church walls, public plazas, and elegant gardens, are first and foremost astronomical instruments. Before understanding how sundials work, one must first understand the apparent motion of the Sun in the sky. In this book, Denis Savoie presents the basics of astronomy required to understand sundials and describes how to design and build your own classical sundial. Written for all levels of science readers, the author shows the calculations involved in the sundial’s construction and also gives a comprehensive history of time measurement. The practical and observational aspects of sundials will enable readers to create custom-made sundial of their own, adding whatever special features they wish to include. Most of these designs have been tested by people with no previous knowledge of astronomy. To aid the reader, the book is full of clear and instructive illustrations and diagrams.
A young Native American raised in the forest is suddenly thrust into the modern world, in this novel by the author of The Dog Who Came to Stay. Thomas Black Bull’s parents forsook the life of a modern reservation and took to ancient paths in the woods, teaching their young son the stories and customs of his ancestors. But Tom’s life changes forever when he loses his father in a tragic accident and his mother dies shortly afterward. When Tom is discovered alone in the forest with only a bear cub as a companion, life becomes difficult. Soon, well-meaning teachers endeavor to reform him, a rodeo attempts to turn him into an act, and nearly everyone he meets tries to take control of his life. Powerful and timeless, When the Legends Die is a captivating story of one boy learning to live in harmony with both civilization and wilderness.
Eratosthenes and the Measurement of the Earth's Circumference (c.230 BC) is an innovative and thought-provoking examination of one of the pivotal moments in the history of science. This text analyses a debate that has been going on for more than 2,300 years over the accuracy of Eratosthenes' experiment and calculations and puts to rest all prior theories that have come before. This work engages with this long running debate by applying innovative and multi-disciplinary methods such as linguistic analysis, mathematical modelling, satellite mapping, archaeological investigation and historical examination that creates the first ever combined exploration of this important event in the history of astronomy.