Showing posts from July 4, 2010

How Fireworks Work

Image has a fabulous article about how fireworks work, complete with diagrams and animations. I strongly recommend that you try this at home, kids!

Shell NameDescriptionPalmContains large comets, or charges in the shape of a solid cylinder, that travel outward, explode and then curve downward like the limbs of a palm treeRound shellExplodes in a spherical shape, usually of colored starsRing shellExplodes to produce a symmetrical ring of starsWillowContains stars (high charcoal composition makes them long-burning) that fall in the shape of willow branches and may even stay visible until they hit the groundRoundelBursts into a circle of maroon shells that explode in sequenceChrysanthemumBursts into a spherical pattern of stars that leave a visible trail, with an effect somewhat suggestive of the flowerPistilLike a chrysanthemum shell, but has a core that is a different color from the outer starsMaroon shellMakes a loud bangSerpentineBursts to send small tubes …