What distinguishes high explosives from low explosives regarding duration?

High explosives are characterized by their ability to detonate and produce a rapid release of energy over a short duration, typically measured in microseconds to milliseconds. This rapid reaction creates a shock wave that is capable of producing significant destruction. In contrast, low explosives burn at a comparatively slower pace, leading to a more prolonged reaction time, which can range from seconds to minutes. This slower combustion is utilized in applications like propellants in firearms or fireworks.

By understanding this distinction in duration between high and low explosives, it becomes clear that high explosives are identified by their short-duration reactions, while low explosives exhibit longer duration reactions. This key difference in how quickly each type of explosive reacts and produces energy is essential for their respective applications and safety considerations.