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During the Renaissance, when fireworks as we know them were invented,
pyrotechnicians lit their creations with tissue paper rolled around a trail of
black powder. Later, string embedded with gunpowder was used. Today,
electrical wires connect fireworks to a master control board. With the push of
a button, an electrical current rushes through the wire and creates a spark at
the point of contact.
The main fuse simultaneously lights two secondary fuses—a fast-acting side
fuse, that ignites the lift charge—and a time-delay fuse
buried inside the shell that leads to the heart of the firework.
(back to Anatomy)
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