High-explosive refers to a type of explosive material that detonates rapidly, producing a powerful shockwave and a large volume of gas. These explosives are designed to create a significant amount of energy in a very short time, making them effective for military applications, demolition, and mining. Common examples of high-explosives include TNT, RDX, and PETN. Unlike low-explosives, which burn slowly and are used in applications like fireworks and propellants, high-explosives can cause extensive damage over a wide area. They are often used in military ordnance, such as bombs and shells, to maximize destructive capability. Safety measures are crucial when handling these materials due to their sensitivity and potential for accidental detonation.