“Space flight got its start as a war weapon amid the collapse of the great Western culture of Earth. The invention of Muir’s tape-mass engine carried early explorers out as far as Jupiter. The building, by remote control, of the Bridge on the face of Jupiter itself, easily the most enormous engineering project ever undertaken by man, had made possible direct, close measurements of Jupiter’s magnetic field.
The measurements provided final confirmation of the Blackett Dirac equations, which as early as 1948 had proposed a direct relationship between magnetism, gravitation, and the rate of spin of any mass.”
Prologue, Earthmen Come Home, Cities in Flight, James Blish, 1955
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