Explaining The Ocean on Instagram: "a submarine implodes when the outside water pressure becomes greater than the structural strength of its hull. the deeper a sub goes, the higher the pressure—at about 1,000 meters under the ocean, the pressure is roughly 100 times that of the atmosphere at sea level. if the submarine’s hull has flaws (like weak welds, metal fatigue, corrosion, or damage from an earlier incident), it can no longer withstand that pressure. once the metal gives way, the collapse