Exploding Color

4 Jul
NYC fireworks July 4, 2008 by Barry Yanowitz via flickr

NYC fireworks July 4, 2008 by Barry Yanowitz via flickr

Yesterday, we plotted how best to see the NYC fireworks display tonight with the least amount of inconvenience. In other years, we’ve had friends with roof access and good proximity. And a few years ago, we lived in an apartment in New Jersey that sat on a hill facing Manhattan with a bay window vantage point of much of New York Harbor.

That view was my favorite feature of that apartment, which we paid for in sweat equity– a climb up narrow stairs to the third floor. Any time of the year, but particularly on summer evenings, we might hear pops and crackles and head to the window to see where the colored bursts might appear next. Though we usually had no idea of the reason, the sky exploded in color just for us.

As a chemist I know that the palette of those bursts is all about burning different metal ions to produce fountains of shimmering color. And there’s a downside: some of the chemicals– such as perchlorates– in traditional fireworks can cause health and environmental problems. While researchers are working on greener solutions, conventional pyrotechnics are still cheaper.

Even if it means fewer displays, I hope more fireworks shows will “go green”– and red and blue and purple. Even if fireworks occur less often, the “added color value” would be worth it.

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