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John B. Barber is the co-founder and President of Modern Transport Systems Corp and the inventor of the magnetic levitation technology being developed by the company. During this interview, Mr. Barber explains how magnetic levitation can be applicable to assisting in the launch of winged space craft, and how such "mag-lev" would work. We discuss not only the technical side of mag-lev, but also the practical and economic side of using this technology. We also discuss its application in low gravity environments such as on the Moon and on Mars. Mr. Barber explains why this is a plausible technology for today, not for the distant future, and we look at the list of benefits that mag-lev could provide including weight reduction from the structure of the vehicle, fuel, and in the overall vehicle design.