Describes many different kinds, uses, and benefits of pulleys. Provides examples of pulleys by showing a flagpole, a crane, an elevator and window blinds.

Brute Force Beginner's Strength System By: Ken Gack ‘the Ripper’ Often, new strength trainees don’t know where to begin. After years of directing future gym rats to existing training templates, Ken Gack imparts his thirty years of experience to develop something better. The Russians developed the periodization approach to strength training over five decades ago. It has been a staple to strength training programs since that time. With the explosion in popularity of powerlifting over the last decade, more advanced approaches have begun to edge out periodized based approaches in popularity and performance. One of the advantages of periodized approaches is the structure they bring to strength training. This is particularly valuable for newer lifters. This structure, however, can become so rigid that it dampens potential strength gains. The power of contemporary strength programming is that it provides flexibility to maximize a person’s strengths and strengthen their weaknesses. The newer methodologies this book focuses on have taken more lifters to world powerlifting championships than any other approach. This book seeks to use a basic periodized foundation and incorporate newer methodologies to give it flexibility that enhances its strength training effect.

Learn about the different uses of levers. How does it work and why? These fun science books answer kids' questions about the world around them-and encourage them to ask more.

Explains how and why ramps and other inclined planes are used in everyday life.

Excellent reference outlining the technical basis and working principles of live-line working, with current application technology, tools and working methods Introduces live-line working technology for the operation and maintenance of medium and low voltage power distribution networks, covering both the methods and techniques of live-line working on distribution networks with O&M field practices and experiences Elaborates the technical basis and working principles of live-line working in detail, with current application technology, tools and working methods Combining theory and practice closely, it provides technical guidance and helpful references to technical personnel who are engaged in distribution operation management, as well as related academics and researchers Written by a team of authors with extensive experience in both industry and academic fields, providing first-hand testimony of the issues facing electricity distribution companies, and offering sound theoretical foundations and rich field experiences