This is the official collected volume of Nathan Coppedge's amazing and prolific career as an inventor. Originally intended as a complete collection of Nathan's inventions, it was subsequently decided that each major category deserves its own separate volume. So, if you want the best perpetual motion machines Nathan Coppedge's 100 Great Perpetual Motion Machines and the companion volume 50 Great Flying and Underwater Perpetual Motion Machines and 75 Simple Inspirations for Perpetual Motion are considered more complete.
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