<< The popping sound of a bursting soap bubble is acquired using microphone arrays and analyzed using spherical harmonics decomposition. >>
the << acoustic emission originates mainly from the capillary stresses exerted by the liquid soap film on the air and that it quantitatively reflects the out-of-equilibrium evolution of the flowing liquid film. (..) the acoustic signature of violent events of physical or biological origin could be used to measure the forces at play during these events. >>
Adrien Bussonniere, Arnaud Antkowiak, et al. Acoustic Sensing of Forces Driving Fast Capillary Flows. Phys. Rev. Lett. 124, 084502 Feb 27, 2020.
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.124.084502
Bob Yirka. Measuring the sound of a soap bubble popping. Phys.org. Mar 2, 2020.
https://m.phys.org/news/2020-03-soap.html
