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Message: <blockquote data-quote="aramis erak" data-source="post: 8551819" data-attributes="member: 6779310">The majority of designs look largely like a point down cone, with the majority of the crop space below sea level either lining the main cone or in pie-dish shaped additional components. All of them have sidewalls raised to 100m or more above sea level. Articulated interconnects under surface. Additionally, aquaculture projects float in a ring of life around them. Given the large sizes (typically, the proposals I've seen put the main hab cones at 1-2 km across, 0.3 to 1 km deep, and surrounded by aquaculture to 3 km radius. Boat launches and cargo porting are outside the actual cones, too. The walls of the cones are typically shown as 30-50m thick, so, think an inner side hab, an outer side hab, both say 10-15m of the thickness each, and another 7 to 15 m of no-outside-access facility. Think schools, shopping, administration.THe obvious need for compartmentalization in case of storm or impact would mean fairly regular patterns. Lowest risk housing is no outside edge, but that's also not good housing for humans.The inside of the cone gets used for growing the terrestrial foodstuffs. The nutrient needs of those will probably require composting. There will be a constant influx of materials from aquaculture projects. The effluent from the sewage system will likely need to be composted; radiation-sterilize it, then add it to a cultured composting in a subordinate (possibly even submerged) structure.The other big form is a series of seafloor domed cities. Most of the domes would still need to make food....Note that cruise ships largely just dump effluent. Which means that they can't draw water if they aren't moving, since it's contaminated by their own sewer dumping. THey have many small cabins, but no room for manufactuing, no room for growing, and no structural strength for significant armammentsThe "cans" (more properly, "turret mount") which big ships' guns fit into are structurally affixed to the keel; if they weren't, they'd crack the decks during a longish fight. The guns recoil within the turret head; the turret head rotates inside a can-shaped inset. The inset interacts with a structural fitting tied to the keel, so the guns recoil operates against the whole-hull mass. This is all to reduce self-damage from guns. (Several late 19th C warships had huge issues with self-damage from oversized guns...)Most sea arcologies will have defenses - but they're more likely to be drones, not guns,</blockquote>

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