Bøger af William Gurstelle

This bestselling DIY handbook now features new and expanded projects, enabling ordinary folks to construct 16 awesome ballistic devices in their garage or basement workshops using inexpensive household or hardware store materials and this step-by-step guide. Clear instructions, diagrams, and photographs show how to build projects ranging from the simple match-powered rocket to the more complex tabletop catapult and the offbeat Cincinnati fire kite. The classic potato cannon has a new evil twin-the piezo-electric spud gun-and the electromagnetic pipe gun has joined the company of such favorites as the tennis ball mortar. With a strong emphasis on safety, the book also gives tips on troubleshooting, explains the physics behind the projects, and profiles scientists and extraordinary experimenters such as Alfred Nobel, Robert Goddard, and Isaac Newton. This book will be indispensable for the legions of backyard toy-rocket launchers and fireworks fanatics who wish every day was the fourth of July.

A man's home is his castle, or so the saying goes, but could it withstand an attack by Attila and the Huns, Ragnar and the Vikings, Alexander and the Greeks, Genghis Khan and the Mongols, or Tamerlane and the Tartars? Backyard Ballistics author William Gurstelle poses this fascinating question to modern-day garage warriors and shows them how to build an arsenal of ancient artillery and fortifications aimed at withstanding these invading hordes. Each chapter introduces a new bad actor in the history of warfare, details his conquests, and features weapons and fortifications to defend against him and his minions. Clear step-by-step instructions, diagrams, and photographs show how to build a dozen projects, including "e;Da Vinci's Catapult,"e; "e;Carpini's Crossbow,"e; a "e;Crusader-Proof Moat,"e; "e;Alexander's Tortoise,"e; and the "e;Cheval-de-frise."e; With a strong emphasis on safety, the book also gives tips on troubleshooting, explains the physics behind many of the projects, and shows where to buy the materials. By the time they've reached the last page, at-home defenders everywhere will have succeeded in creating a fully fortified home.

Each volume of William Gurstelle's unique, hands-on journey through history examines remarkable inventors whose insights and inventions helped create our modern world.

Industrial Revolutionaries is the second volume in William Gurstelle's unique exploration of history's great inventors. Each chapter revisits the life and times of one of the important inventors of the Industrial Revolution. Uniquely, this book also gives you step-by-step instructions for recreating the invention yourself.

Early Makers explores the life and times of people from the past whose insights and inventions helped create the world we live in. What sets this series apart from other history books - including other histories of technology - is that each chapter also includes step-by-step instructions for making your own version of the historical invention.