SciTech-insider on Instagram: "In 1945, a single uranium bomb unleashed energy equal to 15,000 tons of TNT, exploding 580 meters above Hiroshima to maximize destruction. A fireball almost 300 meters wide formed instantly, with temperatures near 3000°C, melting steel, warping bridges, and collapsing 70% of the city within seconds. Nearly 80,000 lives vanished in a single day, with thousands more later suffering from burns, trauma, and deadly radiation — leading to increased cancer rates for decad