Excerpt from Publications of the Astronomical Society of the Pacific, Vol. 4 The enunciation by Sir robert ball of the fact, which seems to have been first clearly brought to light by him, that of the total amount of heat falling from the sun in a year, upon either the Northern or the Southern hemisphere, 63 per cent. Is received in summer and 37 per cent. In winter, has awakened renewed interest in the problem of the glacial epochs. Dr. Ball's the orem not only strengthens the astronomical explanation of the cause of such epochs, but also adds to its clearness. This explanation may be summed up in a few words. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Exploring Ancient Skies brings together the methods of archaeology and the insights of modern astronomy to explore the science of astronomy as it was practiced in various cultures prior to the invention of the telescope. The book reviews an enormous and growing body of literature on the cultures of the ancient Mediterranean, the Far East, and the New World (particularly Mesoamerica), putting the ancient astronomical materials into their archaeological and cultural contexts. The authors begin with an overview of the field and proceed to essential aspects of naked-eye astronomy, followed by an examination of specific cultures. The book concludes by taking into account the purposes of ancient astronomy: astrology, navigation, calendar regulation, and (not least) the understanding of our place and role in the universe. Skies are recreated to display critical events as they would have appeared to ancient observers--events such as the supernova of 1054 A.D., the "lion horoscope," and the Star of Bethlehem. Exploring Ancient Skies provides a comprehensive overview of the relationships between astronomy and other areas of human investigation. It will be useful as a reference for scholars and as a text for students in both astronomy and archaeology, and will be of compelling interest to readers who seek a broad understanding of our collective intellectual history.

Adaptive optics is set to revolutionise the future of astronomy; this is the first book on the subject and is set to become the standard reference.

Advances in Archaeological Method and Theory, Volume 4 presents the progressive explorations in methods and theory in archeology. This book discusses the increasing application of surface collection in cultural resource management. Organized into eight chapters, this volume begins with an overview of the fundamental aspects of archeoastronomy and explains what kinds of testable hypotheses that archeoastronomy generates. This text then examines the general implications for the study of cultural complexity. Other chapters consider the use of surface artifacts by archeologists to locate sites, establish regional culture histories, and to know where to excavate within sites. This book discusses as well the interpretative interfaces between archeology on the one hand, and ethnohistory and ethnology on the other, that is based on a theoretical stance advocating a fundamental holistic approach to anthropology. The final chapter deals with understanding the ecology of ancient organisms. This book is a valuable resource for archeologists and anthropologists.

A thought provoking study of the powerful impact of images in guiding astronomers' understanding of galaxies through time.