I was at an event with a giant, choreographed firework show. Like they literally brought in Japanese masters of pyrotechnics for it. It was beautiful and all kinds of shapes like flowers and hearts and stuff.
And afaik they do different colours by burning different elements but how do they do specific shapes and like timings? Like one piece of firework having several different layers and colours and stuff. How does it not all explode at the same time in all kinds of directions?
In: 1125
There’s a crucial detail missing from these otherwise very good answers: the burst charge is evenly (as much as possible) distributed inside the entire shell, surrounding all but the outermost stars. This means the the stars near the periphery of the shell receive the oomph from the entire charge, while those close to the center get less of it, which again means that they stay in place relative to one another as they expand away from the burst.
If the charge was located only in the center of the shell, the stars closest to it would gain more speed and the pattern would be ruined.
Latest Answers