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Making a city in space

I've always wanted to live on one of those things like in Warner Bros cartoons (the ones with that little helmeted dude with no face)...all those pathways going everywhere right out in the middle of nothing.
First, we start colonizing maybe the Moon or Mars (or even Venus, just maybe Mercury), then we can discuss about creating our own version of the Death Star.
A little over a year ago, I did a tongue-in-cheek industry presentation on emerging building technologies and sustainability, under the premise of "could you build the Death Star". Obviously not practical, but potentially theoretically possible with some adaption and smarter design choices.

In short, internal pressure wasn't a concern, hoop (wall tank) pressure is a bit more challenging (but solved by modular design), but thrust pressure is a killer and you would need a smaller Death Star (~16km radius would work if you used a similarly efficient but smaller laser that just vapourised all a planet's water). Basically the design was steel (and carbon nanotube) reinforced ultra-high performance photocatalytic concrete (wide temperature range performance, good heat capacity or damage resistance to lasers, excellent thermal mass and decent emissivity meaning smaller thermal exhaust ports, excellent radiation protection if boron carbide impregnated, naturally scrubs the air, and readily available materials from mining).

Definitely a fun presentation to do!
@Fmuror02 probably space city can be made. If we make artificial plants for oxygen then it would be possible
I mean we could make a virtual one in blender xD. Also I like this idea
Artificial plants might not prove optimum for C02 absorption and subsequent Oxygen waste expulsion.But on the upside..they would never need pruning.
That’s a very strange and bad idea+ we could bring air from earth and energy from the sun wouldn’t pollute

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