Description: Wooden base stirling engine model kit science physics educational toy. Burnning the alcohol lamp continuously, and the expansion of air in the tube will work as a medium to run the piston and flywheel. Then the expanding air will be cooled in cold chamber; this process will be repeatedly circulating. The hotter it gets, the faster the flywheels run! very interesting! Great educational toy, classroom or laboratory experimental teaching aids, cultivate children's interest in physics, more intuitive and easy to understand. What is Stirling Engine? A stirling engine is a heat engine that operated by cyclic compression and expansion of air or other gas at different temperatures, so that there will be a net conversion of heat energy to mechanical work. Specification: Item Name: Stirling Engine Model Materials: Wood, Aluminum Alloy, Steel, Glass Color: Coffe, Silver Size(L*W*H): Approx. 18*9*8.5cm / 7.08*3.54*3.34inch Flywheel Diameter: Approx. 5.5cm / 2.16inch Suitable Age: 8 years old and above Experiment Type: Physical Package Includes: A Stirling Engine Model An Alcohol Lamp with Wick Two Standby Glass Tubes An Alcohol Filling Container Three Wrenches A Sealing Ring A Silicone Tube A Use Manual A Product Certification Note: Do not touch the baked test tube and the metal connected to it, so as not to burn. Long time light alcohol lamp, alcohol lamp can not easily touch, so as not to burn. Suitable for more than 8 years of age, 8 years of age need to operate under the guardianship of parents. When heating, do not touch the tube of alcohol lamp tube, wick combustion will produce moisture, if touched, may lead to tube cracking
