Detonating cord is a flexible plastic tube filled with a high-explosive material, typically PETN (pentaerythritol tetranitrate). It is used in demolition and blasting operations to initiate explosions in a controlled manner. The cord can be easily cut to desired lengths and is often employed to connect multiple explosives, ensuring simultaneous detonation. When ignited, detonating cord produces a shock wave that travels along its length at a high speed, making it effective for precise timing in blasting. It is commonly used in construction, mining, and military applications, where safety and efficiency are crucial in handling explosives.