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   ocr: Why do explosions go bang? We hear sound when air vibrates rapidly around our ears. As an explosion creates a short, violent movement of air, known as a shock wave, we hear it as an extremely loud burst of sound. WMMA 2 - - HWTNNS Shock iave around an explosion Most things go bang when they explode. If you get too close to a powerful explosion, it can permanently damage your hearing - - that's why wrecking crews wear earmuffs when they work.