How does shrapnel work?

Have you ever wondered about the mechanics behind shrapnel? It's a fascinating aspect of munitions and explosives, but how exactly does it work? When a shell containing shrapnel is fired, it travels through the air towards its target. Upon impact, the shell explodes, releasing a multitude of small metal fragments, or shrapnel, in all directions. These fragments can cause severe injury or even death to anyone in their path. But what triggers the explosion? And how does the shell manage to distribute the shrapnel so evenly? Join me as we delve deeper into the workings of shrapnel and unravel its mysteries.