Thermal cameras are special devices that detect heat instead of visible light. They work by capturing the infrared radiation emitted by objects, allowing us to see temperature differences. This technology is useful in various fields, such as building inspections, firefighting, and medical diagnostics, helping professionals identify issues that are not visible to the naked eye. These cameras create images called thermograms, where warmer areas appear brighter and cooler areas appear darker. This makes it easier to spot problems like heat leaks in homes or overheating electrical equipment. Overall, thermal cameras are valuable tools for enhancing safety and efficiency in many applications.