ADVANCED PROPULSION CONCEPTS A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z                    HOME ABOUT CATEGORIES SITE MAP COPYRIGHT ADVERTISE CONTACT entire Web this site diametric drive Artist's concept of a diametric drive spacecraft. Credit: Popular Science One of the seven types of hypothetical space drives suggested by Marc Millis of the Breakthrough Propulsion Physics Program at NASA's Glenn Research Center (see Millis drives). A generic version of a 1957 negative mass propulsion concept, the diametric drive would somehow create an asymmetric field around itself. The interactions of the positive and negative field would then, it is conjectured, propel the spacecraft. Principle of the diametric drive. Credit: Popular Science Related category    • ADVANCED PROPULSION CONCEPTS Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) BACK TO TOP