Their Arrows Will Darken the Sun

Author: Mark Denny
Publisher: JHU Press
ISBN: 0801899818
Format: PDF, Docs
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For study or hobby, Their Arrows Will Darken the Sun is an entertaining guide to the world of ballistics.

King of Battle Artillery in World War I

Author:
Publisher: BRILL
ISBN: 9004307281
Format: PDF, ePub, Mobi
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In King of Battle: Artillery in World War I a distinguished array of authors examines the centrepiece of battle in the Great War, artillery. Going beyond tables of calibres and ranges, they look at organization, training, personnel, doctrine, and technologies.

Setting Aside All Authority

Author: Christopher M. Graney
Publisher: University of Notre Dame Pess
ISBN: 0268080771
Format: PDF, Kindle
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Setting Aside All Authority is an important account and analysis of seventeenth-century scientific arguments against the Copernican system. Christopher M. Graney challenges the long-standing ideas that opponents of the heliocentric ideas of Copernicus and Galileo were primarily motivated by religion or devotion to an outdated intellectual tradition, and that they were in continual retreat in the face of telescopic discoveries. Graney calls on newly translated works by anti-Copernican writers of the time to demonstrate that science, not religion, played an important, and arguably predominant, role in the opposition to the Copernican system. Anti-Copernicans, building on the work of the Danish astronomer Tycho Brahe, were in fact able to build an increasingly strong scientific case against the heliocentric system at least through the middle of the seventeenth century, several decades after the advent of the telescope. The scientific case reached its apogee, Graney argues, in the 1651 New Almagest of the Italian Jesuit astronomer Giovanni Battista Riccioli, who used detailed telescopic observations of stars to construct a powerful scientific argument against Copernicus. Setting Aside All Authority includes the first English translation of Monsignor Francesco Ingoli’s essay to Galileo (disputing the Copernican system on the eve of the Inquisition’s condemnation of it in 1616) and excerpts from Riccioli's reports regarding his experiments with falling bodies.

Reconstructing Ancient Linen Body Armor

Author: Gregory S. Aldrete
Publisher: JHU Press
ISBN: 1421408198
Format: PDF, ePub
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Alexander the Great led one of the most successful armies in history and conquered nearly the entirety of the known world while wearing armor made of cloth. How is that possible? In Reconstructing Ancient Linen Body Armor, Gregory S. Aldrete, Scott Bartell, and Alicia Aldrete provide the answer. An extensive multiyear project in experimental archaeology, this pioneering study presents a thorough investigation of the linothorax, linen armor worn by the Greeks, Macedonians, and other ancient Mediterranean warriors. Because the linothorax was made of cloth, no examples of it have survived. As a result, even though there are dozens of references to the linothorax in ancient literature and nearly a thousand images of it in ancient art, this linen armor remains relatively ignored and misunderstood by scholars. Combining traditional textual and archaeological analysis with hands-on reconstruction and experimentation, the authors unravel the mysteries surrounding the linothorax. They have collected and examined all of the literary, visual, historical, and archaeological evidence for the armor and detail their efforts to replicate the armor using materials and techniques that are as close as possible to those employed in antiquity. By reconstructing actual examples using authentic materials, the authors were able to scientifically assess the true qualities of linen armor for the first time in 1,500 years. The tests reveal that the linothorax provided surprisingly effective protection for ancient warriors, that it had several advantages over bronze armor, and that it even shared qualities with modern-day Kevlar. Previously featured in documentaries on the Discovery Channel and the Canadian History Channel, as well as in U.S. News and World Report, MSNBC Online, and other international venues, this groundbreaking work will be a landmark in the study of ancient warfare.

Gliding for Gold

Author: Mark Denny
Publisher: JHU Press
ISBN: 1421402157
Format: PDF, ePub
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As anyone from cold climates knows, living with lots of ice and snow can lead to a special appreciation of sports such as skiing, sledding, and skating. Prolific physics popularizer Mark Denny’s take on winter athletics lays out the physical principles that govern glaciated game play. After discussing the physical properties of ice and snow and describing the physics behind sliding friction and aerodynamic drag, Denny applies these concepts to such sports as bobsledding, snowboarding, and curling. He explains why clap skates would only hinder hockey players, how a curling rock curls, the forces that control luge speed, and how steering differs from skiing to snowboarding. With characteristic accuracy and a touch of wit, Denny provides fans, competitors, and coaches with handy, applicable insights into the games they love. The separate section of technical notes offers an original and mathematically rigorous exploration of the key aspects of winter sports physics. A physics-driven exploration of sports played on ice and snow that is truly fun and informative, Gliding for Gold is the perfect primer for understanding the science behind cold weather athletics.

The Science of Navigation

Author: Mark Denny
Publisher: JHU Press
ISBN: 1421405113
Format: PDF, Docs
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"Denny details the evolution of navigation from the days of coastal piloting to GPS and other modern-day technologies. He explains the scientific breakthroughs in accessible, amusing terms and provides an insightful look at their effects on societies, cultures and human advancement." -- Back cover.

Making Sense of Weather and Climate

Author: Mark Denny
Publisher: Columbia University Press
ISBN: 0231542860
Format: PDF
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How do meteorologists design forecasts for the next day’s, the next week’s, or the next month’s weather? Are some forecasts more likely to be accurate than others, and why? Making Sense of Weather and Climate takes readers through key topics in atmospheric physics and presents a cogent view of how weather relates to climate, particularly climate-change science. It is the perfect book for amateur meteorologists and weather enthusiasts, and for anyone whose livelihood depends on navigating the weather’s twists and turns. Making Sense of Weather and Climate begins by explaining the essential mechanics and characteristics of this fascinating science. The noted physics author Mark Denny also defines the crucial differences between weather and climate, and then develops from this basic knowledge a sophisticated yet clear portrait of their relation. Throughout, Denny elaborates on the role of weather forecasting in guiding politics and other aspects of human civilization. He also follows forecasting’s effect on the economy. Denny’s exploration of the science and history of a phenomenon we have long tried to master makes this book a unique companion for anyone who wants a complete picture of the environment’s individual, societal, and planetary impact.