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The technique to do this is similar to that used in constructing stellar models. You know some of the properties of your object - in this case, it look like the mass and radius. You want to figure out the internal structure of the planet, including the central density and pressure, as well as the density and pressure profiles as functions of radius. The best ...


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There's ongoing work to develop a mechanical counterpressure suit, which uses stretchy materials to squeeze the occupant, with only the helmet needing to be pressurised with some suitable gas or fluid. Helmets can more easily be made rigid and so not have issues with volume changes. (MIT Biosuit) Filling a suit with water might be tricky, due to its ...


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Since it is sci fi, i just want to add that lasers are good anti-spaceship weapons. propagating at the speed of light they are hard to evade. The trajectory of a hard sci fi spaceship is difficult to modify and easy to forecast. the power source is in the ship itself, any hard sci fi ship worth his salt having some kind of fission, fusion or antimatter ...


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I know this is an old thread but wanted to throw my two cents in. The closest to an actual plasma weapon I find feasible would be a sort of tracer round like ammunition. Something that consists of a potent oxidizer or reducing agent with a low reation threshold and high energy and power output. It would still be a common projectile weapon until target strike....


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