Tác giả: Francis Graham

Francis Graham is emeritus faculty of the Department of Physics at Kent State University . He has been interested in the progression of technology in society , the exploration and resource exploitation of the Earth’s Moon and also new aviation technologies. He is one of the original founders of the Tripoli Rocketry Association, the largest amateur and high power rocketry organization in the world. He has written numerous articles and papers for scientific journals and popular media, and also a textbook on physics. He presently lives near Pittsburgh.