Through hands-on, you can observe the whole process of the Stirling engine, understand the working principle of the Stirling engine more intuitively, and deepen students ' interest in physics The engine model is metal and elegant craftsmanship, which is sturdy and The Stirling engine model has been assembled and can be used directly Due to the heat of, the engine will run frantically and generate electricity The power will pass through the wires and drive the LED lighting This is really an interesting and imaginative toy It has a wide range of applications, such as children ' s science projects, physics / mechanical learning, classroom demonstration props for teachers,, family members, parents, children ' s birthday gifts