In the past few years, we have covered plenty of amazing Stirling engines here. These heat engines are wonderful for teaching kids basic physics concepts. The RAVPump 4-Cylinder Stirling Engine takes it to the next level. Simply add 95% alcohol, and you are ready to go.
More gadgets like this: here
This engine has a solid metal construction to last you a while. It measures 7 x 7 x 5.9″.
**Disclaimer: Our posts may feature aff links. As an Amazon Associate, we earn from qualifying purchases. Please read our disclaimer on how we fund this site.
