ilmVerse 📜🔭🧪 on Instagram: "💥🔥What happens in a nuclear detonation (brief) 1. Fireball & thermal radiation — an intensely hot, bright fireball forms immediately and emits enormous thermal (heat) and light energy. This causes severe burns and can ignite fires at distances beyond the blast itself. 2. Shock (blast) wave — a very strong overpressure pulse expands outward, destroying buildings, shattering glass, and throwing debris. Structural damage and collapse are the main killers near ground