This is the largest firework ever launched — and the scale is unreal. Captured over Nagaoka, Japan, this single shell represents the absolute peak of pyrotechnic engineering. One ignition. One ascent. Total sky dominance. Timeline breakdown: Launch — 0:36 Watch the lift charge streak upward like a tracer round. Apex — 0:45 The moment containment fails and the sky opens. What makes this shell legendary isn’t just its size — it’s the precision. The burst forms a near-perfect sphere, dispersing gol