What is a Gravity Machine? Remember that part in Star Trek IV where Kirk, Spock and co. used the gravity of the sun to whip their ship up to an extraordinary speed. It’s like that, but with less time-travel and another star. Here’s more from Centauri Dreams:
Freeman Dyson’s notion, explained in the paper “Gravitational Machines” that we looked at last week, was to extract energy from a binary star system, as shown in the figure from the paper below. The ever imaginative Dyson, remember, was captivated by the possibilities of engineering on the part of advanced civilizations, whose works we might observe in the form of technosignatures. Here, the idea involves two stars of mass equal to the Sun revolving around a common barycenter. A spacecraft can be injected into an orbit that maximizes the gravitational effect…
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