The alchemist's dream turned industrial: making fresh water from thin air or from its base atoms. Advanced versions don't just pull humidity from the atmosphere (like fancy dehumidifiers); they chemically synthesize it by burning hydrogen in oxygen (H₂ + O₂ → H₂O), a process requiring vast amounts of energy and a source of hydrogen (like electrolysis of seawater). On a colony world with no liquid water, this is the life-support technology that lets you build a civilization, provided you have a massive power source to run the reaction at scale.
*Example: "Marsport survives because of the massive water synthesis plant outside the dome. It cracks ice mined from the poles into hydrogen and oxygen, then recombines them into pure drinking water for the city. It's our most energy-hungry facility, but also our most vital." Water Synthesis Plants
by Dumuabzu January 29, 2026
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