Groom's Theory : The Big Jump - Leigh Brackett

"Principle used for the Ballantyne drive: "Groom's theory, on which Ballantyne built his drive, was that the so-called light-speed barrier was real, and that matter achieving faster-than-light velocities would shift into another
plane of atomic vibration, or matter-state, creating a closed vacuum in the continuum in which energy could be neither gained nor lost. Hence, the mass-propulsion field, the ship feeding onitself, as it were, using the kinetic energy stored up in the original acceleration. The drive works, but whether or not that proves the theory, we don't know. There's a very interesting
distortion of time ..."


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