Answered by Mr.KMOSSMAN
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Oct. 30, 2015 23:24
I think you are framing the question incorrectly. Fireworks were probably more an accidental discovery - which were realized as way of signalling - superior to using flags/bonfires.
Gunpowder was also an accidental discovery then it was realized the energy could be directed through a tube - the beginning of gunpowder ballistics.