Handmade Clear Solar Power Crookes Radiometer A decorative and educational glass radiometer that spins when exposed to sunlight. This handmade clear solar power radiometer converts light energy into visible motion, making it an attractive desk or shelf ornament and a simple physics demonstration. Key benefits Visual demonstration of light to mechanical motion: Place the radiometer in direct sunlight and the vanes will rotate, illustrating how sunlight can produce motion. Decorative and gift ready: The clear glass design fits living room, office, or study decor and makes a thoughtful creative gift for family and friends. Educational tool: Useful for basic physics lessons or hands on learning to spark curiosity and encourage exploration in older children and students. Product details Type: Crookes radiometer powered by sunlight Material: Glass Size: Approximately 13 cm Age suitability: Recommended for children aged over 14 years due to fragile glass construction Handmade: Each piece is crafted by hand and may show slight variations Use scenarios Classroom demonstration: Use during a physics lesson to show the conversion of sunlight into motion and to prompt discussion about energy and light. Home or office display: Place on a windowsill, desk, or shelf to add subtle kinetic decoration and a talking point for guests. Gift for curious minds: A creative present for students, hobbyists, or anyone interested in science and unique home decor. Package contents 1 Solar Power Radiometer Care and notes Fragile glass product; handle with care and keep out of reach of young children. For performance place in direct sunlight; rotation speed depends on light intensity. Please allow a 1 to 3 cm difference due to manual measurement. Color and appearance may vary slightly from images because of monitor differences and handmade variation.