Putting the flash in fireworks

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  • 7/28/2019 Putting the flash in fireworks

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    Putting the flash in fireworksQuick, violent chemical reactions put the bright colors in fireworks.A similar, more gentle reaction occurs in a fluorescent lamp:

    Fireworks Fluorescent light

    Shellexplodes,generates

    heat

    Electric current makes gasin tube give offultraviolet(UV) light

    UV light excitesphosphorson insidewalls oftube

    Explosionheats

    metals,other

    chemicals

    infirework

    Metal or chemicalgives off light

    Phosphorgives off light

    Transfer energy

    Release energy

    Make energy

    Greens

    Golden white

    Yellow-orange

    Reds

    Purple

    Barium

    Iron, magnesium,aluminum

    Sodium

    Strontium

    Potassium

    Warm, reddishdecorator light

    Cold, bluish lightused in office

    Purple-tinted lightfor indoor gardening

    Full-spectrum lightthat simulates daylight

    2013 MCTSource: Argonne National Laboratory Division of Educational Programs

    Color depends on whatelement creates it

    Color depends onphosphorus compound used

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