The shell's fuse will burn while the shell rises to its correct altitude, and then the fuse ignites the contents of the shell so it explodes. A simple shell used in an aerial fireworks display. The blue balls are the stars, and the gray is black powder. The powder is packed into the center tube, which is the bursting charge. It is also sprinkled between the stars to help ignite them.
Simple shells consist of a paper tube filled with stars and black powder.
The stars are poured into the tube and then surrounded by black powder. When the fuse burns into the shell, it ignites the black powder, causing the shell to explode. The explosion ignites the outside of the stars, which begin to burn with bright showers of sparks. Inc. All rights reserved. Simply register for a free Postbox in the country where your merchant is located.