Studying spinning-induced scattering of sound to create next-generation acoustic devices using new phonon modes

https://phys.org/news/2022-12-spinning-induced-next-generation-acoustic-devices-phonon.html

"incident beams affected scattering induced by spinning object... radiation torque and force... single beam striking spinning cylinder produced negative radiation force... simple configuration involving single beam sufficient to build acoustic tweezers... additional uses of spinning fluids, such as nonreciprocal waveguiding and acoustic equivalents of the optical fiber to bring acoustic telecommunications one step closer to practical applications"