Catapult Design Construction And Competition With The Projectile Throwing Engines Of The Ancients
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Catapult Design, Construction and Competition with the Projectile Throwing Engines of the Ancients by Anonim Pdf
Filled with anecdotes, plans, photographs, drawings and detailed descriptions of the workings and history of all the major types of catapults, these pages will help readers get started in this fascinating hobby of harnessing the power and energy of simple and ancient machines, then using them to hurl all sorts of silly things into the air just to watch them splat.
Let children experience the learning power of play! Let’s Play is a handbook full of child-led, open-ended learning adventures. The 39 fresh, fun, and budget-friendly activities (plus more than 225 play variations) are packed with learning that helps children develop important motor, cognitive, language, and social skills. These activity starters were all tested by a slew of early childhood professionals and approved by the children they work with. Building on the early learning principles presented in the author team’s first book together, Let Them Play: An Early Learning (Un)Curriculum, they also support your transition to a play-based, child-led (un)curriculum. Jeff A. Johnson has more than twenty years of early childhood experience as a former child care center director and current family child care business owner. He is a popular keynote speaker, trainer, and author of six books. Denita Dinger has been a child care provider for more than ten years and is a frequent speaker at early childhood conferences, focusing on the topics of hands-on and play-based learning. This is her second book.
In the pantheon of air power spokesmen, Giulio Douhet holds center stage. His writings, more often cited than perhaps actually read, appear as excerpts and aphorisms in the writings of numerous other air power spokesmen, advocates-and critics. Though a highly controversial figure, the very controversy that surrounds him offers to us a testimonial of the value and depth of his work, and the need for airmen today to become familiar with his thought. The progressive development of air power to the point where, today, it is more correct to refer to aerospace power has not outdated the notions of Douhet in the slightest In fact, in many ways, the kinds of technological capabilities that we enjoy as a global air power provider attest to the breadth of his vision. Douhet, together with Hugh “Boom” Trenchard of Great Britain and William “Billy” Mitchell of the United States, is justly recognized as one of the three great spokesmen of the early air power era. This reprint is offered in the spirit of continuing the dialogue that Douhet himself so perceptively began with the first edition of this book, published in 1921. Readers may well find much that they disagree with in this book, but also much that is of enduring value. The vital necessity of Douhet’s central vision-that command of the air is all important in modern warfare-has been proven throughout the history of wars in this century, from the fighting over the Somme to the air war over Kuwait and Iraq.
War in the Age of Intelligent Machines by Manuel De Landa Pdf
The author aims to show how the emergence of intelligent and autonomous bombs and missiles equipped with artificial perception and decision-making capabilities represents a profound historical shift in the relation of human beings both to machines and to information.
The Defensive Armour and the Weapons and Engines of War of Mediæval Times, and of the "Renaissance" by R. Coltman Clephan Pdf
"The Defensive Armour and the Weapons and Engines of War of Mediæval Times, and of the "Renaissance"" by R. Coltman Clephan. Published by Good Press. Good Press publishes a wide range of titles that encompasses every genre. From well-known classics & literary fiction and non-fiction to forgotten−or yet undiscovered gems−of world literature, we issue the books that need to be read. Each Good Press edition has been meticulously edited and formatted to boost readability for all e-readers and devices. Our goal is to produce eBooks that are user-friendly and accessible to everyone in a high-quality digital format.
America's Munitions 1917-1918 by United States War Dept Pdf
This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Crusader Castles and Modern Histories by Ronnie Ellenblum Pdf
For the last 150 years the historiography of the Crusades has been dominated by nationalist and colonialist discourses in Europe and the Levant. These modern histories have interpreted the Crusades in terms of dichotomous camps, Frankish and Muslim. In this revisionist study, Ronnie Ellenblum presents an interpretation of Crusader historiography that instead defines military and architectural relations between the Franks, local Christians, Muslims and Turks in terms of continuous dialogue and mutual influence. Through close analysis of siege tactics, defensive strategies and the structure and distribution of Crusader castles, Ellenblum relates patterns of crusader settlement to their environment and demonstrates the influence of opposing cultures on tactics and fortifications. He argues that fortifications were often built according to economic and geographic considerations rather than for strategic reasons or to protect illusory 'frontiers', and that Crusader castles are the most evident expression of a cultural dialogue between east and west.
The appearance of the crossbow on the European battle field in A.D. 1100 as the weapon of choice for shooting down knights threatened the status quo of medieval chivalric fighting techniques. By 1139 the Church had intervened, outlawing the use of the crossbow among Christians. With this edict, arms control was born. As Robert L. O'Connell reveals in this vividly written history of weapons in Western culture, that first attempt at an arms control measure characterizes the complex and often paradoxical relationship between men and arms throughout the centuries. In a sweeping narrative that ranges from prehistoric times to the nuclear age, O'Connell demonstrates how social and economic conditions determine the types of weapons and the tactics used in warfare and how, in turn, innovations in weapons technology often undercut social values. He describes, for instance, how the invention of the gun required a redefinition of courage from aggressive ferocity to calmness under fire; and how the machine gun in World War I so overthrew traditional notions of combat that Lord Kitchener exclaimed, "This isn't war!" The technology unleashed during the Great War radically altered our perceptions of ourselves, as these new weapons made human qualities almost irrelevant in combat. With the invention of the atomic bomb, humanity itself became subservient to the weapons it had produced. Of Arms and Men brilliantly integrates the evolution of politics, weapons, strategy, and tactics into a coherent narrative, one spiced with striking portraits of men in combat and penetrating insights into why men go to war.
Author : Lewis Mumford Publisher : University of Chicago Press Page : 524 pages File Size : 49,6 Mb Release : 2010-10-30 Category : History ISBN : 9780226550275
Technics and Civilization first presented its compelling history of the machine and critical study of its effects on civilization in 1934—before television, the personal computer, and the Internet even appeared on our periphery. Drawing upon art, science, philosophy, and the history of culture, Lewis Mumford explained the origin of the machine age and traced its social results, asserting that the development of modern technology had its roots in the Middle Ages rather than the Industrial Revolution. Mumford sagely argued that it was the moral, economic, and political choices we made, not the machines that we used, that determined our then industrially driven economy. Equal parts powerful history and polemic criticism, Technics and Civilization was the first comprehensive attempt in English to portray the development of the machine age over the last thousand years—and to predict the pull the technological still holds over us today. “The questions posed in the first paragraph of Technics and Civilization still deserve our attention, nearly three quarters of a century after they were written.”—Journal of Technology and Culture
Bio-Inspired Innovation and National Security by National Defense University Pdf
Despite the vital importance of the emerging area of biotechnology and its role in defense planning and policymaking, no definitive book has been written on the topic for the defense policymaker, the military student, and the private-sector bioscientist interested in the "emerging opportunities market" of national security. This edited volume is intended to help close this gap and provide the necessary backdrop for thinking strategically about biology in defense planning and policymaking. This volume is about applications of the biological sciences, here called "biologically inspired innovations," to the military. Rather than treating biology as a series of threats to be dealt with, such innovations generally approach the biological sciences as a set of opportunities for the military to gain strategic advantage over adversaries. These opportunities range from looking at everything from genes to brains, from enhancing human performance to creating renewable energy, from sensing the environment around us to harnessing its power.
Toward a Ludic Architecture by Steffen P. Walz Pdf
“Toward a Ludic Architecture†is a pioneering publication, architecturally framing play and games as human practices in and of space. Filling the gap in literature, Steffen P. Walz considers game design theory and practice alongside architectural theory and practice, asking: how are play and games architected? What kind of architecture do they produce and in what way does architecture program play and games? What kind of architecture could be produced by playing and gameplaying?
This engaging and accessible book explains the scientific principles behind guns, both ancient and modern. It connects their evolution to advances in science, as well as tracing the developments of projectiles and propellants. It is not limited to small arms but also looks at the science of enormous guns such the Paris Gun, for example, and reviews the efforts to build a gun to launch projectiles into space. Extremely fast guns are also covered, such as two-stage guns and rail guns. Further, the book provides insight into the science of terminal ballistics and wound ballistics as well as the challenging subject of gun control. It is full of interesting facts for all who are curious about the science and history of guns, as well as those for whom the gun is an accessory of their profession.
Author : William Henry Smyth Publisher : London : Blackie and son Page : 836 pages File Size : 45,5 Mb Release : 1867 Category : Military art and science ISBN : UOM:39015011554733
