What does the term "concussion" refer to in pyrotechnic terminology?

The term "concussion" in pyrotechnic terminology specifically refers to a type of explosive device designed to create a shock wave or intense pressure wave. This device is often used in displays to enhance the auditory experience of the audience. Concussions produce a loud bang or report that can be quite startling, contributing to the overall impact of a fireworks display.

In contrast, the visual effects created in the sky involve the colorful bursts and patterns produced by burning chemicals in fireworks, which are distinct from the sound effects. While sound effects, such as those produced by concussions, play a vital role in a display, they are not synonymous with the visual components. Furthermore, a controlled burn is a technique used for different purposes in demonstrations, involving the management of fire in a structured manner, which does not relate to the explosive nature of a concussion in pyrotechnics.