Sonofusion [0] was a neat idea, and some of the relevant experiments (at least the cavitation part) can be done on a bench top with a hobbyist level budget. Las

Sonofusion [0] was a neat idea, and some of the relevant experiments (at least the cavitation part) can be done on a bench top with a hobbyist level budget. Last I checked, the research had been somewhat tarnished by academic fraud. The physics of jet formation during bubble collapse near a solid boundary remains fascinating [1]. [0] https://en.wikipedia.org/wiki/Bubble_fusion https://en.wikipedia.org/wiki/Bubble_fusion [1] https://authors.library.caltech.edu/48933/1/On%20the%20Mechanism%20of%20Cavitation%20Damage%20by%20Nonhemispherical%20Cavities%20Collapsing%20in%20Contact%20With%20a%20Solid%20Boundary.pdf https://authors.library.caltech.edu/48933/1/On%20the%20Mecha...