Mô hình động cơ Stirling mini DIY dành cho trẻ em

Description : A engine is a heat engine that operated by cyclic compression and expansion of air or other gas at different temperatures , such that there will be a net conversion of heat energy to mechanical work . Hot air engine motor model kit physics teaching aids educational toys Burnning the alcohol lamp for a while , the expansion of air in the tube will work as a medium to run the pistons and flywheel , then the expanding air will be cooled in cold chamber . As this process will be repeatedly circulating , the flywheel will continuously work . The hotter the tube gets , the faster the flywheel goes . Very interesting ! Great for cultivating students &# 39 ; interest in physics , more intuitive and easy to understand how heat engergy is converted into mechanical work . Specification : Item name : engine model Materials : Metal + glass Main color : Silver + golden Size : approx . 16x7x8cm / 6 . 3x2 . 76x3 . 15 inch Package Includes : 1 Piece Engine Model : This engine does not generate electricity . 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 , combustion will produce moisture , if touched , may to tube cracking .