Core drilling is a technique used to extract cylindrical samples, or "cores," from various materials like soil, rock, or concrete. This method involves using a specialized drill bit that creates a hole while preserving the core's structure. Core samples are essential for geological studies, construction projects, and environmental assessments. The process typically involves a drilling rig that applies pressure and rotation to the drill bit. Once the core is extracted, it can be analyzed for mineral content, strength, and other properties. This information helps engineers and geologists make informed decisions regarding construction, mining, and environmental management.