#34: Fresh Air Is Created, Not Stored
Contrary to popular belief, submarines don’t carry air tanks to survive underwater. Instead, they produce breathable oxygen onboard by splitting water molecules using electrolysis. It’s a marvel of engineering—but one with risks. The hydrogen byproduct is highly flammable and must be vented constantly to avoid disaster.
In this confined world, oxygen is as vital as it is volatile. Crewmembers trust in sensors, alarms, and the vigilance of engineers to maintain safe levels. A single malfunction could tip the balance between life and suffocation. Inside a submarine, breathing isn’t taken for granted; it’s a scientific process sustained by invisible precision.
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