I have added a file titled "New Varieties of Thermoacoustic Engines" to the Files Section and a link titled "Thermoacoustic Generator" to the Links section.
These additions are related to a clip titled "maquinavapor2008.MOV,
Putt putt power to mechanical power" in the Files folder, "Daryl's Video Files" and a link titled "JORGE HUGO CORDERO'S 2FMOTORPOFPOF PAGES." Jorge Hugo Cordero is an electrical engineer in La Plata, Argentina and a member of the pop-pop steamboats discussion group.
Best wishes, Frank