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Q&A Forging with geothermal heat: Possible alternative to fire in alien species' technological progression?

A world idea I'm playing with for a sci-fi idea I'm working on has an atmosphere similar to the composition of Earth's atmosphere during the Carboniferous Period: Lots of oxygen, so while a human o...

3 answers  ·  posted 6y ago by BonnetBee‭  ·  last activity 6y ago by BonnetBee‭

Question atmosphere reality-check technological-development fire tools