Based on David Hamel's life, this book chronicles both the emotional and technical struggles David encountered in developing his prototypes of the GMD (Gravito-Magentic Device). A candid account of the life of a simple man with an extraordinary mission. The granite man and the butterfly chronicles the life of a simple man who was chosen for a heroic task. David was given advanced information enabling him to build a spacecraft that would provide an abundant source of non-polluting energy. This book chronicles the frustration and enormous obstacles that he faced, from non-believers to government officials. This story details his progress from the past to the present, on this amazing mission and the effort being made to realize his goal. For the past six years Pierre has been working with David Hamel in an effort to duplicate the device that lifted off from Mr. Hamel's yard in Maple Ridge, BC. Canada, in 1977. Also included, is an appendix on Canadian engineer Wilbert Smith. Mr. Smith was one of the first engineers to work with the government in researching unusual properties within magnetic fields.