@amazeifystore: The 28-volt mistake that almost doomed Apollo 13. 🚀 Inside oxygen tank two, a legacy thermostat met 65 volts, welding the contacts shut and creating a silent 1,000-degree furnace. This hidden insulation damage remained a secret until the next stir changed everything. Why do we overlook legacy limits during high-power transitions? 🛰️ Follow for more deep dives into engineering failures! #Apollo13 #NASA #SpaceHistory #EngineeringFail #SpaceFacts #MoonMission #TechHistory #Science #Aerospace #DisasterAnalysis