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Expert is an award-winning lecturer, writer, mathematician, and engineer who has conducted successful engineering design studies for the GPS and various communication satellites and booster rockets. He helped mastermind the GPS constellation, performed orbit selection trades and on-orbit maneuvering studies for commercial communication satellites, and optimum trajectory shaping and six-degree-of-freedom trajectory reconstructions for the Saturn 5 moon rocket. He also helped engineer the giant geosynchronous solar power satellites, the Spitzer space telescope now in an Earth-trailing orbit around the sun, the manned Mars mission of 2016, and the chemical inter-orbital shuttle designed to ply a regular trade-route between the Earth and the moon. His important contributions to the space-based GPS radio-navigation system have included force-multiplier effects and survivability studies for the US military, and studies intended to maximize the utility of the GPS receivers used for terrestrial, aviation, and space-borne applications. The expert has written and sold 1.7 million words, including 30 technical books. He has delivered motivational, technical, and scientific lectures in more than two dozen different countries scattered across six continents. He also helped design an exhibit for the Smithsonian Institution, made guest appearances on 25 television shows, applied for a patent, lectured professionally and composed 19,000 words for Encyclopedia Britannica. As an expert witness, he has been recruited to work on cases totaling more than $300 million. His assignments have included summarizing prior art, chart design, researching and writing, providing historical perspectives, evaluating patents, conducting engineering trade studies, polishing and rewriting the contributions of others, developing clear, persuasive and accurate story lines easily understood by aerospace experts, attorneys, judges, and layman alike.


Expert provided advice on navigation satellites and constellation design for Damlier-Benz in Friedrichshafen, Germany.
He wrote proposals and developed small business concepts for Consultare International in Bethesda, Maryland.He designed, wrote, and edited a video presentation announcing that Boeing Aerospace had become responsible for the next generation of GPS satellites.Developed, wrote, and polished effective advertising copy touting a new family of GPS receivers being marketed by Navstar, Ltd., in Daventry, England.Instructed young South African engineers on the fundamental principles of orbital mechanics and reviewed their emerging Greensat satellite design at Stellenbosch University and at Houwteg Corporation near Cape Town, South Africa.