Thermal imaging is a technology that allows us to see heat instead of visible light. It uses special cameras that detect infrared radiation, which is emitted by all objects based on their temperature. This means that even in complete darkness, we can visualize the heat patterns of people, animals, and objects, making it useful for various applications like search and rescue, building inspections, and medical diagnostics. The images produced by thermal cameras show different temperatures in various colors, helping us identify hot and cold areas easily. For example, in firefighting, thermal imaging can help locate hotspots in a burning building, ensuring the safety of firefighters and aiding in effective rescue operations.