1. Educational Science Model: This desktop windmill model is ideal for physics lessons, science education, and teaching energy knowledge, allowing students to experience the fascinating process of converting heat energy from hand. 2. Compatibility: This solarpowered windmill is designed for use with a solar film test lamp, effectively demonstrating heat penetration and the insulation properties of different film materials, providing a more intuitive understanding. 3. EcoFriendly Design: Since the mechanics do not require a power source or battery, this structure is environmentally friendly. Additionally, its compact and charming design makes it a fun desk ornament, adding creativity to any office space. 4. Thermal EnergyPowered: This DIY solar windmill model operates without a battery and spins automatically when heated. It offers an engaging and simple demonstration of the heat insulation effect of solar films, making it a striking and easytouse tool.