This book is the ultimate compilation of the ideas, mathematical equations and plans for free energy devices which have been invented in the last century and a half. Starting with the work of the genius Nicola Tesla, this book features units and systems of the great men who’ve contributed to the sphere of free energy, such as the permanent motor, the electromagnetic motor, permanent magnet motor, battery recharge systems, multi-field coils, solid state amplifying transformers and homopolar generators. A superb collection for anyone interested in building a device. 128-pages $21.95 (Order# 5257)