Nurtle on Instagram: "In 1958, the United States detonated a nuclear weapon underwater as part of Operation Hardtack I, specifically the Cherry test. The bomb was exploded beneath the ocean surface to study how nuclear blasts behave in water. Underwater nuclear detonations act very differently from air blasts. The explosion creates a massive water column, followed by intense pressure waves that travel far through the ocean. These shockwaves were strong enough to damage ships and submarines well