News Summary

• Stirling engine converts heat into high-amplitude sound waves.
• The engine itself has no moving parts.
• The whole build is very much within range of a home maker.
• If you want to play with thermoacoustics but [My Engines]’s design seems like a little much to get started with, you can make a demonstrator with some steel wool and a test tube.
• Be careful, though: model engines can be an addictive hobby.
• This is really cool.
• I don’t know if I buy into the “can be made with simple tools” part, the video looks like they had access to a machine shop more or less.