Pulley Systems Explained has evolved into a full 300 dpi color book, with more than 280 pages. It includes many more diagrams, drawings, examples, pictures, and applications. It explains the difference between simple, complex pulley systems, and how compounding effect works, how to determine the pulley advantage of any pulley system, ways to use them at work, for rescue, or while on an adventure. Including a special section of applications, strategies, and tactics. A sampling of many situations we run into while working in real life. It teaches skills, and helps prepare you to handle those complex situations we all must deal with, yet there is no simple answer. I share other related things that 40 years of "walking the talk" has brought. ♦"Book knowledge is good information, combine training, and it becomes usable knowledge, add experience and you have the pure gold of knowledge." This is the "Pulley Section" of the "Ropes, Pulleys, Rigging Systems, and Avoiding Dangerous Resultants Book Series. "Pulley Systems Explained" is the evolution of many years of writing, collecting, drawing, taking pictures, working with other professionals, rewriting, organizing, and fine tuning articles and books about Ropes, Pulleys, Rigging System, and Safety (Avoiding Dangerous Resultants). Rope is one of the most common simple machines, add pulleys and we now have a system. This book if full of systems you can use at work, during rescues, and at home, or while on adventures. There are examples, challenges, quizzes, charts, diagrams, and pictures, and more ways we can work with pulleys to make our lives better. "Maximum Efficiency and Simplicity with a Minimum of Effort and Equipment; while maintaining low risk exposure." It defines an approach to assembling our systems. Pulley Systems Explain is also a good companion book to use with ®vRigger Software for learning various pulley rigging systems.

This is an 100 page Introductory e-Book, designed to give a flavor of the books in the "Ropes, Pulleys, Rigging Systems, and Avoiding Dangerous Resultants Book Series." You can get a free E-Book Reader on this site for your Android, I-phone, I-pad, or Computer. to read the book. It's birth is due to my observation while work with Professionals in Construction, Rope Access, Work at Height, Technical Rope Rescue, Fire Fighters, Search and Rescue, Confined Space, Paramedics, Climbers, and others. I noticed that there are "Resultant Forces, and Resultant Angle of Force (Vectors) that were creating problems inconveniences, other create injuries and property damage, and the worst one create fatalities. Consequently, I put together a presentation for the International Technical Rescue Symposium (ITRS) 2001. It was well received, so for the next five years I continued to share more ideas at ITRS, 2002 - 2006 to help prevent accidents and improve our skills and efficiency. Working with ropes, pulleys, and rigging systems, etc. is complicated. There are many different terms, a mountain of equipment, engineering principles, and an infinite number of ways the equipment can be used to aid us, or to hinder us. In this 100+ page book I explain many concepts, ideas, techniques, and most importantly, principles regarding the use of this gear. You find a sampling of subjects, examples, charts, pictures, details, pulley systems, complex pulleys systems, block and tackle, moving and non moving pulleys (COD) This book will help you make a purchasing decision to buy the first book in the Ropes, Pulleys, Rigging Systems, and Avoiding Dangerous Resultants Series called Mechanical Advantages #3 Pulley Systems Explained V 3.0 by Douglas S. Hansen Available on Amazon.com

An Advanced Skills book dealing with Mechanical Advantages - primarily Pulleys but many related items for rescue, work, and adventure. 300 pages plus of skills and idea that will be of value for anyone who uses rope, pulleys, and the related gear.

APlusPhysics: Your Guide to Regents Physics Essentials is a clear and concise roadmap to the entire New York State Regents Physics curriculum, preparing students for success in their high school physics class as well as review for high marks on the Regents Physics Exam. Topics covered include pre-requisite math and trigonometry; kinematics; forces; Newton's Laws of Motion, circular motion and gravity; impulse and momentum; work, energy, and power; electrostatics; electric circuits; magnetism; waves; optics; and modern physics. Featuring more than five hundred questions from past Regents exams with worked out solutions and detailed illustrations, this book is integrated with the APlusPhysics.com website, which includes online question and answer forums, videos, animations, and supplemental problems to help you master Regents Physics essentials. "The best physics books are the ones kids will actually read." Advance Praise for APlusPhysics Regents Physics Essentials: "Very well written... simple, clear engaging and accessible. You hit a grand slam with this review book." -- Anthony, NY Regents Physics Teacher. "Does a great job giving students what they need to know. The value provided is amazing." -- Tom, NY Regents Physics Teacher. "This was tremendous preparation for my physics test. I love the detailed problem solutions." -- Jenny, NY Regents Physics Student. "Regents Physics Essentials has all the information you could ever need and is much easier to understand than many other textbooks... it is an excellent review tool and is truly written for students." -- Cat, NY Regents Physics Student

In Aristotle's Empiricism, Jean De Groot argues that an important part of Aristotle's natural philosophy has remained largely unexplored and shows that much of Aristotle's analysis of natural movement is influenced by the logic and concepts of mathematical mechanics that emerged from late Pythagorean thought. De Groot draws upon the pseudo-Aristotelian Physical Problems XVI to reconstruct the context of mechanics in Aristotle's time and to trace the development of kinematic thinking from Archytas to the Aristotelian Mechanics. She shows the influence of kinematic thinking on Aristotle's concept of power or potentiality, which she sees as having a physicalistic meaning originating in the problem of movement.De Groot identifies the source of early mechanical knowledge in kinesthetic awareness of mechanical advantage, showing the relation of Aristotle's empiricism to more ancient experience. The book sheds light on the classical Greek understanding of imitation and device, as it questions both the claim that Aristotle's natural philosophy codifies opinions held by convention and the view that the cogency of his scientific ideas depends on metaphysics.

Text and photographs present pulleys and their function as a simple machine.