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For questions about the use of engineering to create structures and devices in other worlds, including whether or not a device could be made or what materials would be needed to make a device.

21 votes
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What should be done with the carbon when using magic to get oxygen from carbon dioxide?

You don't need to expel any carbon There is actually a set of non-magical chemicals and reactions that can do exactly what you want, the magical part would be regenerating the "waste" chemicals back t …
Richie Frame's user avatar