Thermal cameras are devices that detect infrared radiation, which is emitted by all objects based on their temperature. Unlike regular cameras that capture visible light, thermal cameras create images based on heat signatures, allowing users to see variations in temperature. This technology is commonly used in various fields, including building inspections, firefighting, and medical diagnostics. These cameras can identify heat loss in buildings, locate hotspots in electrical systems, and even help in detecting fevers in people. By converting thermal energy into visible images, thermal cameras provide valuable insights that are not visible to the naked eye, enhancing safety and efficiency in many applications.