Thinking specifically of scuba diving. It requires a ton of equipment and training and can still be dangerous. In movies there’s always some kind of little gadget that allows people to breathe underwater without all that equipment. Why can’t we build a simple mouth piece with an oxygen canister attached that we could carry around and breathe into when we need?
In: Engineering
Artificial gills are a conceptual possibility however humans consume alot more oxygen than fish so the size of the gills would be massive to generate enough oxygen for a single.person to breathe
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