This book from Tom Valone, author of Electrogravitics Systems and well-known free energy/anti-gravity scientist, is a milestone work on permanent magnet free energy devices. This book is packed with technical information with chapters on the Faraday Disc Dynamo, Unipolar Induction, the Field Rotation Paradox, the Stelle Homopolar Machine, the Trombly-Khan Closed-Path Homopolar Generator, the Sunburst Machine, Experimental Results with Various Devices, more.