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    Weather Next Weekend, Jul 7
    • Friday

      Jul 7

      91° /68°F
      Cloudy and hot
      • Very Unlikely
      • for a snow day
      • Snow: 0%
      • Ice: 0%
      • Snow: 0 in
      More
    • Saturday

      Jul 8

      88° /65°
      Clouds and sun; less humid
      • Very Unlikely
      • for a snow day
      • Snow: 0%
      • Ice: 0%
      • Snow: 0 in
      More
    • Sunday

      Jul 9

      88° /71°
      Sunshine
      • Very Unlikely
      • for a snow day
      • Snow: 0%
      • Ice: 0%
      • Snow: 0 in
      More
    NYC fireworks

    The science behind fireworks: 'Chemistry in action'

    June 29, 2017, 9:14:36 AM EDT

    The mechanics of our patriotic pyrotechnics come entirely from chemistry, the driving force behind the motion, heat, light, smoke and sound of these brilliant, captivating displays. more

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