Sparks still fly in a recession

Invented by the Chinese and adored worldwide, fireworks have defined July 4th ever since founding father John Adams suggested in 1776 that Independence Day "ought to be solemnized with pomp and parade, with shows, games, sports, guns, bonfires, and illuminations from one end of this continent to the other."

That's why, today, many fireworks-makers consider themselves not technicians, but artists. From fireworks' distinct color combinations formed using specific element clusters -- barium chlorate makes green, for example -- to their musical arrangements, they inspire. "It's like putting together a motion picture," says Sousa.

And audiences continue to be moved, too. Even if it requires traveling to the next town over this year (or starting a Web site à la savelajollafireworks.com), the centuries-old fireworks tradition is alive and well. No matter the economic woes, says Sousa, "the public wants to celebrate the Fourth of July."

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