# @worldscifest on Instagram

- **Type:** Image
- **Original URL:** https://www.instagram.com/p/BkyHQ6SACPJ
- **Gondola URL:** https://gondola.cc/posts/2460728-worldscifest-instagram
- **Thumbnail:** https://img.gondola.cc/tr:w-,h-,fo-auto/postThumbnails/254a7f3830.jpg
- **Posted:** 2018-07-03T20:31:56.000+00:00
- **Account Owner:** WorldScienceFestival (@WorldSciFest) — https://gondola.cc/WorldSciFest

## Caption

Have you ever wondered what causes the multi-colored explosions in a #fireworks display? Chemistry can help. How about the shapes you see in the sky? Shape depends on the arrangement of the stars inside the shells (scroll through this gallery for a helpful diagram). A symmetrical circle configuration, for instance, will explode into a ring in the air. Poetically named patterns like willow, chrysanthemum, palm, roundel, and serpentine require complicated arrangements of stars within the burst charges, an art that takes years to master. Multibreak shells—several shells with stars of different colors and designs in a single package—rapidly explode in sequence. The audience, though, sees only a single firework that appears to change shape, such as a round sphere (the first shell), with a star shape in its center (the second shell). Link in our stories for more! 🎆🎇 .
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#julyfourth #firework #explosion #howstuffworks #infographic #learning #education #understand #how #july4th #independenceday #science #physics #chemistry #july4 #fourthofjuly #4thofjuly

## Stats

- **Views:** 0
- **Likes:** 447
- **Shares:** 0
- **Comments:** 7

## Tags

understand, fourthofjuly, julyfourth, how, explosion, infographic, independenceday, science, howstuffworks, learning, fireworks, education, july4, firework, chemistry, physics, july4th, 4thofjuly

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