If you've ever wondered how to build a catapult or trebuchet, or wondered what you'd do with it once you've built one, then this book can help. 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 you get started in this fascinating hobby. You too will feel the joy of harnessing the power and energy of simple and ancient machines, then use them to hurl all sorts of silly things into the air, just to watch them splat!

Catapult Design, Construction And Competition With the Projectile Throwing Engines of the Ancients

Children's Books

Payne-Gallwey, Ralph

Toms, Ron L.

Barcio, Bernard F.

Science, Nature & How It Works

RLT Industries

This book is a compilation of step-by-step instructions for how to build nine different types of catapults and trebuchets, including plans for: A PVC Pipe Trebuchet, A Tabletop Trebuchet, The World Famous Floating Arm Trebuchet, The Historical WarWolf Trebuchet, A Rat-Trap Catapult, The Mangonel (or Onager), The Greek Ballista, a Petraria Arcatinus And the Scorpion II. Each set of instructions include dimensional drawings of all wooden parts, lists of required hardware and sources, an abundance of photos, diagrams and detailed descriptions of the assembly process. Additional sections include historical notes for the different types of machines, warnings and safety suggestions, tuning tips, notes on scaling, tools and techniques and additional notes on even more kinds of catapults.

The Big Book of Catapult and Trebuchet Plans!

History

Military

RLT Industries, Inc.

Converting a car to electric is a pretty big project, but if you have a good set of tools and mechanical aptitude, you can do it. This book will help you calculate the range and acceleration you'll get with your conversion. It includes a complete detailed schematic diagram, photos, illustrations and an overview of the whole project including a walk through the decisions process, what components are necessary and why you need them, some of the different types of components and how to choose. A page full of useful links for chargers, controllers, battery managers, batteries, motors and other items is included at the end. You will gain the benefit of all my experience working with electrical and mechanical systems, plus many days worth of searching on-line resources and analyzing countless youtube videos. Everything it took to do an actual conversion is distilled into this one comprehensive volume.

Convert It!: A simple step-by-step guide for converting any classic car into an electric vehicle.

Crafts, Hobbies & Home

Antiques & Collectibles

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Books by Toms, Ron L.