The main fuse simultaneously lights two secondary fuses—a fast-acting side fuse that ignites the lift charge, and a time-delay fuse buried inside the shell that leads to the heart of the firework.

black powder mix, time-delay fuse, bursting charge, and other essential ingredients. Here, put on the pyrotechnician's hat and see a typical firework from the inside out.

Skylighters Fireworks of Western New York is preparing for what some may call the busiest firework holiday of the year. They will be putting on 59 shows over the course of the next four nights ...

LEARNING AS A RESULT. MEANWHILE, PITTSBURGH’S PERRY HIGH SCHOOL WAS EVACUATED YESTERDAY AFTER A STUDENT REPORTEDLY SET OFF A FIREWORK INSIDE OF THE BUILDING. IN A STATEMENT, THE DISTRICT SAYS ...