A glass solar radiometer with rotating vanes that respond to sunlight, providing a clear visual demonstration of energy conversion from light to motion. Key benefits Demonstrates solar energy conversion in a tangible, easytounderstand way. Serves as an effective physics teaching aid that clarifies how sunlight becomes energy. Aesthetic display piece for living rooms or classrooms that invites inquiry and discussion. What this product does When placed in direct sunlight, the vanes inside the glass enclosure rotate, illustrating energy transfer from light to mechanical motion. A compact, visually engaging tool that supports science learning without complicated setup. Key attributes Function: Solar powered radiometer; vanes rotate in sunlight to show energy conversion. Material: Glass enclosure; delicate and fragile; handle with care. Size: Compact display suitable for desks, shelves, or classroom displays (exact dimensions not provided). Performance: Primarily designed for direct sunlight to achieve rotation; bright light indoors may produce slower or negligible motion. Compatibility: Suitable for home or classroom use, compatible with standard display spaces such as desks and shelves. Safety and age: Recommended for ages 14 and up; not a toy for younger children. Use scenarios Home and living room display: Place on a desk or shelf to accompany casual conversations about energy and physics; adds an elegant touch to decor while sparking curiosity. Classroom demonstration: Use during physics lessons to illustrate energy transfer from light to motion and to discuss factors affecting rotation speed (light intensity, exposure angle). Science project or activity: Incorporate as a handson component in projects about solar energy and energy conversion, or as a comparison tool to observe changes under different lighting conditions and placements. Care and handling Glass is fragile; avoid impact and rough handling. Keep out of reach of small children; handle with care during setup and display.