To Measure The Sky

With a lively yet rigorous and quantitative approach, this textbook introduces the fundamental topics in optical observational astronomy for undergraduates. It explains the theoretical foundations for observational practices and reviews essential physics to support students' mastery of the subject. Student understanding is strengthened through over 120 exercises and problems.

A quantitative yet accessible undergraduate introduction to the collection and analysis of observational data in optical and infrared astronomy.

The second edition of this popular text provides undergraduates with a quantitative yet accessible introduction to the physical principles underlying the collection and analysis of observational data in contemporary optical and infrared astronomy. The text clearly links recent developments in ground- and space-based telescopes, observatory and instrument design, adaptive optics, and detector technologies to the more modest telescopes and detectors that students may use themselves. Beginning with reviews of the most relevant physical concepts and an introduction to elementary statistics, students are given the firm theoretical foundation they need. New topics, including an expanded treatment of spectroscopy, Gaia, the Large Synoptic Survey Telescope, and photometry at large redshifts bring the text up to date. Historical development of topics and quotations emphasize that astronomy is both a scientific and a human endeavour, while extensive end-of-chapter exercises facilitate the students' practical learning experience.

“Young readers will be captivated.” —The Washington Post From the creators of the gorgeous bestseller The Night Gardener comes a stunning new picture book about a young boy who sets sail to find a place his grandfather told him about…the spot where the ocean meets the sky. It’s a good day for sailing. Finn lives by the sea and the sea lives by him. Every time he looks out his window it’s a constant reminder of the stories his grandfather told him about the place where the ocean meets the sky. Where whales and jellyfish soar and birds and castles float. Finn’s grandfather is gone now but Finn knows the perfect way to honor him. He’ll build his own ship and sail out to find this magical place himself! And when he arrives, maybe, just maybe, he’ll find something he didn’t know he was looking for.

Explore the skies and learn about the amazing heights insects and birds can achieve while flying. Comparisons to familiar objects give perspective and illustrated rulers show numeric distances. Includes a map, glossary, and further resources.

On any clear night, the night sky offers an ever-changing display of fascinating objects, visible to the naked eye: stars, constellations, bright planets, the moon, human-made satellites, and sometimes even meteor showers or the International Space Station. With gorgeous high-definition imagery and a wealth of charts, graphs, and infographics, readers will find here what is visible in the night sky at various times of the year and from what locations around the world. They will learn what additional objects they can see with the help of telescopes, binoculars, and sky maps. Also featured are skywatching terms and night sky observing tips.

Winner of the 1987 New York Academy of Sciences Children's Science Book Award, Exploring the Night Sky is aimed at novice star gazers anxious to expand their astronomical repertorie beyond the Big and Little Dippers. Dickinson has designed a superb introduction to astonomy that is clear, concise, and very "user friendly" no matter what the child's age. 50 color photographs and illustrations.

#1 NATIONAL BESTSELLER • A passionate call to arms against our era’s most pervasive human rights violation—the oppression of women and girls in the developing world. From the bestselling authors of Tightrope, two of our most fiercely moral voices With Pulitzer Prize winners Nicholas D. Kristof and Sheryl WuDunn as our guides, we undertake an odyssey through Africa and Asia to meet the extraordinary women struggling there, among them a Cambodian teenager sold into sex slavery and an Ethiopian woman who suffered devastating injuries in childbirth. Drawing on the breadth of their combined reporting experience, Kristof and WuDunn depict our world with anger, sadness, clarity, and, ultimately, hope. They show how a little help can transform the lives of women and girls abroad. That Cambodian girl eventually escaped from her brothel and, with assistance from an aid group, built a thriving retail business that supports her family. The Ethiopian woman had her injuries repaired and in time became a surgeon. A Zimbabwean mother of five, counseled to return to school, earned her doctorate and became an expert on AIDS. Through these stories, Kristof and WuDunn help us see that the key to economic progress lies in unleashing women’s potential. They make clear how so many people have helped to do just that, and how we can each do our part. Throughout much of the world, the greatest unexploited economic resource is the female half of the population. Countries such as China have prospered precisely because they emancipated women and brought them into the formal economy. Unleashing that process globally is not only the right thing to do; it’s also the best strategy for fighting poverty. Deeply felt, pragmatic, and inspirational, Half the Sky is essential reading for every global citizen.