Learn more about the anatomy of fireworks


The pattern that an aerial shell sprays in the sky depends on the arrangements of star pellets inside the shell. (Kristy Deer / Daily Reporter)

From firecrackers and sparklers to the ear-shattering Excalibur mortars, celebrating Independence Day with fireworks is a tradition dating to 1776. More recently, shell-making has become more sophisticated with shells that explode into patterns, and pyrotechnicians use computers and remote firing systems to synchronize the firing of shells with a musical score.

The city of Greenfield will launch its fireworks show beginning at dusk Friday at Greenfield Central Junior High School. The Fortville fireworks show will begin at dusk Saturday in Landmark Park.

Circle City Pyrotechnics organizer Donnie Eicks said the Greenfield show will last about 25 to 30 minutes, and will be new for anyone who has seen the show in the past.

Spectators can expect to see images in the sky including fish, bow ties, hearts, smiley faces and more.

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