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While occurring in special effects and Cartoons, the aerial version is almost never attempted in real life. It requires a large number of skyrockets, each of which will make up a part of a letter, much as pixels make up letters on a computer screen. To form a single letter would take at least 4 to 8 individual explosions, and all would have to detonate at exactly the same time in exactly the right places.

This is much more common as a ground effect using sparklers or small Roman candles.

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15y ago

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