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July 3, 2025

Red, White, but Rarely Blue — The Science of Fireworks Colors, Explained

In the earliest days of the United States, John Adams wrote to his wife Abigail about the celebration of independence, “It ought to be solemnized with Pomp and Parade, with Shews, Games, Sports, Guns, Bells, Bonfires, and Illuminations from one End of this Continent to the other from this Time forward forever more.” “Bonfires and illuminations” refer directly to what we know as pyrotechnics and firework displays. I’m a chemist and also president of Pyrotechnics Guild International, an organization that promotes the safe use of fireworks and using them here in the U.S. to celebrate Independence Day and other festivals throughout the year. As a chemist, and someone who leads demonstrations for chemistry students, I consider fireworks a great example of combustion reactions that produce colored fire. But the invention of colored fireworks is relatively recent and not all colors are easy to produce.

Red, White, but Rarely Blue — The Science of Fireworks Colors, Explained Continue Reading »

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