Accessories and Parts -Low Temperature Stirling Engine Kit Educational Toy Highlights Generic Brand Low Temperature Stirling Engine Kit Educational Toy Description: Hot Air Stirling Engine Engine Model Kit Physics Teaching Aids Educational Toys En burning the alcohol lamp for a period of time, expanding the air in the tube will work as a means to operate the pistons and flywheel, then the expanding air will be cooled in a cold room. As this process will cycle repeatedly, the flywheel will work continuously. The hotter the tube, the faster the flywheel goes. Varies interesting! Ideal for cultivating students' interest in physics, more intuitive and easy to understand how heat energy is converted into mechanical work. What is Stirling Engine? A Stirling engine is a heat engine that works by cyclically compressing and expanding air or another gas at different temperatures so that there will be a net conversion of heat energy into mechanical work. specification: Item name: Stirling engine model Materials: stainless steel + glass Package includes: 1 piece Stirling engine model Note: Some engines do not generate electricity Do not touch the baked test tube and the metal that is connected to it, so as not to burn. Long-lasting alcohol lamp, the alcohol lamp can not easily touch, so as not to burn. Suitable for over 8 years old, 8 years old should operate under the guardianship of parents. When heating, do not touch the alcohol lamp tube, burning wick will produce moisture, if touched, may lead to tube cracking.