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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.
Calling all pumpkin chuckers, wannabe marauders, and tinkerers of all ages! Flinging things and playing at defending your own castle has never been more fun. Whether playing at defending their own castle or simply chucking pumpkins over a fence, wannabe marauders and tinkerers will become fast acquainted with Ludgar the War Wolf, Ill Neighbor, Cabulus, and the Wild Donkey—ancient artillery devices known commonly as catapults. Updated and improved instructions and diagrams illustrate how to build 10 authentic working model catapults, including an early Greek ballista, a Roman onager, and the apex of catapult technology, the English trebuchet. Additional projects include learning how to lash and make rope and how to construct and use a hand sling and a staff sling. Building these simple yet sophisticated machines introduces fundamentals of math and physics using levers, force, torsion, tension, and traction. The colorful history of siege warfare is explored through the stories of Alexander the Great and his battle of Tyre; Saladin, Richard the Lionheart, and the Third Crusade; pirate-turned-soldier Jon Crabbe and his ship-mounted catapults; and Edward I of England and his battle against the Scots at Stirling Castle. For the legions of Tolkien fans, budding backyard warriors, and engineering wizards, this book is a must-have.
The Big Book of Catapult and Trebuchet Plans! by Ron L. Toms Pdf
This text is a compilation of step-by-step instructions for how to build nine different types of catapults and trebuchets. Each set of instructions includes dimensional drawings of all wooden parts, lists of required hardware and sources, an abundance of photos, diagrams, and detailed descriptions of the assembly process.
An " enormously entertaining" (Smithsonian), " clever, subtle, and adroit" account (Wall Street Journal) of how the author and his friend constructed a medieval siege engine in a San Francisco backyard. " So funny that I could not put it down" (Los Angeles Times).
A Major Contribution to the History of Technology and Ancient Warfare The most recognized military device of ancient times and the source of continued fascination and popular appeal, the catapult represented a major shift in the conduct of warfare. In "The Catapult: A History" historian Tracey Rihll uses ancient sources and the latest archaeological findings to tell the story of this first machine of war. Dispelling any notion that the catapult was precision engineered in the modern sense, the author explains how a robust formulaic design allowed a variety of machines and missiles to be built and used for particular battlefield conditions or military tasks. Complete with original illustrations, maps, and two appendices detailing both the formulas for catapult construction and known catapult remains, "The Catapult" is essential reading for those interested in the history of warfare and technology.
Whether playing at defending their own castle or simply chucking pumpkins over a fence, wannabe marauders and tinkerers will become fast acquainted with Ludgar, the War Wolf, Ill Neighbor, Cabulus, and the Wild Donkey—ancient artillery devices known commonly as catapults. Building these simple yet sophisticated machines introduces fundamentals of math and physics using levers, force, torsion, tension, and traction. Instructions and diagrams illustrate how to build seven authentic working model catapults, including an early Greek ballista, a Roman onager, and the apex of catapult technology, the English trebuchet. Additional projects include learning how to lash and make rope and how to construct and use a hand sling and a staff sling. The colorful history of siege warfare is explored through the stories of Alexander the Great and his battle of Tyre; Saladin, Richard the Lionheart, and the Third Crusade; pirate-turned-soldier John Crabbe and his ship-mounted catapults; and Edward I of England and his battle against the Scots at Stirling Castle.
United States. Navy Department. Bureau of Aeronautics,United States. Office of the Chief of Naval Operations
Author : United States. Navy Department. Bureau of Aeronautics,United States. Office of the Chief of Naval Operations Publisher : Unknown Page : 68 pages File Size : 44,8 Mb Release : 1957 Category : Aircraft carriers ISBN : STANFORD:36105211328922
During World War I, the navies of the opposing forces discovered the value of aerial reconnaissance and many experiments were made to allow larger warships to carry one or sometimes two aircraft aboard. In the early days these were float planes that were lowered by crane into the sea and then lifted back aboard upon their return. This was a lengthy affair and when a speedy departure was necessary, time was of the essence. A new system was devised so that a powerful catapult system and a short ramp could, with the added speed of the ship, get an aircraft airborne in a fraction of the time previously required. Thus was born a highly specialised type of aircraft. This book includes all the major designs that went to war in the First and Second World Wars and includes aircraft used by all the combatants. It looks at how the aircraft evolved and how the warships were modified to accommodate the aircraft and the catapult system. The use of these fixed-wing aircraft was abandoned when the invention of the helicopter was made in the early post WW II years.
Catapults have been around for many years. In ancient times, catapults were used during war. Today, people use catapults for more than just weapons. They can be used to launch aircrafts and for events like pumpkin throwing contests! No matter how a catapult is used, they all work by using energy. Learn how to make your own catapult by using basic household materials such as popsicle sticks, rubber bands, and plastic spoons. Watch as your catapult launches objects into the air!
Punit Dhillon was nine when he almost drowned in a swimming pool. Twenty years later, he became a competitive swimmer and completed his first of several Ironman Triathlons. Punit lives by the philosophy of using adversity as fuel to exceed all expectations. At thirty, Punit was one of the youngest biotech CEOs in the life sciences industry, and just five years later, he became a NASDAQ CEO for a publicly traded biotech company. Punit's pioneering tenacity is shared by other extreme athletes and high-achieving corporate professionals who understand that we never truly know what we can accomplish until we push our limits. In Catapult, Punit gives you an insider's look at the lessons we learn by turning obstacles into opportunities. Taking you through his twenty years of global business experience, Punit shares ten principles for a purpose-driven life and career, linking together the athletic strengths that will help you succeed in the business world.
Isabelle wishes she could study physics instead of joining her mom as a popcorn manager at Mt. Olympus Theme Park, but when she finds herself in the middle of the myth of Icarus, she is determined to help Icarus and his father escape from the island with a new invention. Aligned to Common Core Standards and correlated to state standards. Spellbound is an imprint of Magic Wagon, a division of ABDO.
Nominated for the Chicago Review of Books Award A work of unflinching honesty, Autoportrait is a hypnotic memoir of reflection, loss, and everyday joy from one of America's best contemporary novelists Jesse Ball has produced fourteen acclaimed works of deeply empathetic absurdism in poetry and fiction. Now, he offers readers his first memoir, one that showcases his “humane curiosity” (James Wood) and invites the reader into a raw and personal account of love, grief, and memory. Inspired by the memoir Édouard Levé put to paper shortly before his death, Autoportrait is an extraordinarily frank and intimate work from one of America's most brilliant authors. The subtle power of Ball's voice conjures the richness of everyday life. On each page, half-remembered moments are woven together with the joys and triumphs—and the mistakes and humiliations, too—that somehow tell us who we are, why we are here. Held at the same height as tragic accounts of illness or death are moments of startling beauty, banality, or humor: "I wake in the morning, I sit, I walk long distances. If there is somewhere to swim, I may swim. If I have a bicycle, I will ride it, especially to meet someone. There is no more preparing for me to do, other than preparing for death, and I do that by laughing. Not laughing at death, of course. Laughing at myself." An extraordinary memoir that reminds us what is possible and builds to the kind of power one might feel reading Anne Carson's Glass Essay, or Joe Brainard's I Remember. Autoportrait will leave you feeling utterly invigorated, inspired, and a little afraid.