The shelf life of fireworks is 8 to 20 years when kept in a cold, dry, and safe storage container,” According to Dynamite Fireworks. “That said, it is best practice to use fireworks in the ...

"High explosives" like dynamite have a velocity of detonation greater than 1,000 yards per second. While consumer fireworks are illegal in some of the 50 American states, licensed public displays ...