Gr 4—7—Beginning with a short history of steam and diesel engines, this presentation speeds ahead to discuss current and future train technologies, including magnetically powered "maglevs." McMahon's skillful writing carefully explains complex concepts such as electromagnetic and electrodynamic levitation. Mora's painterly representations of different trains and comprehendible diagrams add visual clarity. Excerpts from interviews with railroading experts are set apart from the text in boxes containing accompanying small photos. What makes this book stand out from the many other works on railroading is the emphasis on future technology and the inclusion of five projects. They involve constructing "a steam engine in a salad bowl," train tracks, an electromagnet, a maglev test track, and a maglev model. Some supplies will need to be purchased from an electronics or science supplier. Safety precautions are noted. Each project is integrated within the main body of the text; a list of supplies, understandable step-by-step directions, and plenty of helpful diagrams are included. Railroad enthusiasts interested in a hands-on approach to learning will find this volume a useful resource. Schools and libraries seeking do-it-yourself project books should consider it for their railroading collections.—Lynn Vanca, Freelance Librarian, Akron, OH
McMahon presents a brief history of railroad transportation from steam locomotion to diesel and biodiesel engines. High-speed trains are also discussed, as well as projections and prospects for future rail systems (e.g., magnetic). Several hands-on projects (e.g., how to make a simple steam engine) are included. Digital illustrations and line drawings enhance the readable text. Glos., ind.
Be the first reader to comment.
Comment Policy:
Comment should not be empty !!!