Physics Question: Download Physics PDF
How do fireworks turn into shapes like hearts and stars?
Answer:
The fireworks creators have worked many decades to figure these things out. There are several factors. The individual little bursts are wrapped separately. They are then arranged around a core in the shape desired and the propellant charge is placed in the middle. When it goes off it lights the individual bursts and propels them out in the shape desired. In additions to the hearts and stars, a maple leaf is popular in Canada.
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