Gamal Elfouly is a researcher and scientist with a science degree from Cairo University. His research started in the late 70's to find out the mystery of the Great Pyramid. After a long search in Egyptology and all the books and documents of the Great Pyramid, and studying every stone and corner inside, outside and underneath the Great Pyramid, he was sure that it can't be a tomb or a temple for many logical reasons, and that it is built for another reason, to produce something abnormal and rare; something which must be very precious to be generated from such a precise giant machine from ancient times. He found three basic scientific discoveries inside and underneath the Great Pyramid, which are the foundation of the machine function. He applied for worldwide patents for his discoveries which are mentioned in his book "the Great Pyramid System: The Blue Light". He is awarded from the Arab Inventors conference in Egypt, December 1999 for displaying a working miniature model of the Great Pyramid Machine as a new scientific discovery to generate energy. Interviewed for many newspapers and magazines articles in addition to many TV and Radio shows about the Great Pyramid Machine, in Egypt and USA. It took him much effort, patience, time and money to proof with theory, evidence, discoveries and a miniature working model that the Great Pyramid is a working machine. His book is enjoyable with over a hundred colorful pictures and valuable information.