
The thermal shadow experiment demonstrates how objects block infrared radiation, creating a temperature difference in their shadowed area. When an object is placed in front of a heat source, such as a lamp or the sun, it prevents thermal energy from reaching the surface behind it. As a result, the shadowed area remains cooler than the surrounding exposed regions. This effect can be observed using an infrared camera, revealing distinct temperature contrasts. The experiment is commonly used in thermodynamics to study heat transfer, insulation properties, and even forensic investigations.