Neutrons are probably the universe's most important particles. This publication (Colour Images) explains what they are, how they are made and how they fuelled the last 'Big-Bang'. It also explains how they can solve the world's energy problems, by exploiting their energy safely through fission. the only by-product being hydrogen. Moreover, the fuel is free to all; e.g. garden debris, rocks, iron, or anything else you may find lying around.