HMANE Metal Hot Double Cylinder Stirling Engine Model Bulb External Combustion Heat Steam Power Physics Science Experiment

Exquisite Appearence: The metal bracket and the metal piston are firm which is the combination of texture and beauty. The pursuit of the details the overall fine grinding feel smooth very metallic and modern technology. The product itself has been assembled which has the value of collection can be used as a decoration. Precautions: 1)It cannot add water kerosene gasoline lighter oil or liquor. 2)Be careful not to get hot during operation. 3) Bulb Wire Random. 4)Suitable for people over 14 years old. Manufactured by HMANE. Product Size: 6.30×3.43×3.27 Inch [16×8.7×8.3 cm] Material: Metal Operating PrinciplesMethods: The stirling engine is powered by the expansion of the gas and the compression of the cold. Use 95% alcohol in the operation(Not included). The dry air expands to generate power. It cannot add water kerosene gasoline lighter oil or liquor.