Burst charge

In fireworks, a burst charge (usually black powder) [1] is a pyrotechnic mixture placed in a shell which is ignited when the shell reaches the desired height in order to create an explosion and spread the stars. Burst charge compositions are usually coated onto rice hulls or other low-density fillers, which increases the rate of combustion.

Common burst charges
gollark: I do NOT know Nvidia.
gollark: Oh, $1499 apparently?!
gollark: I assume £800 or so, knowing nvidia.
gollark: They're expensive enough that it probably isn't worth it unless you just multipurpose a gaming computer for mining at night.
gollark: Idea: combine them, make kite flee.

References
  1. Federal Register. Office of the Federal Register, National Archives and Records Service, General Services Administration. March 2012.
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