Acoustic Levitation and Trapping

Acoustic levitation allows objects to be suspended in air or in liquids without falling. In this episode, we speak with Philip Marston (Washington State University) about the history of acoustic levitation, and his work to translate previous research into terminology more accessible to modern readers and those outside of the field of physics. Associated papers:- Philip L. Marston. "Trapping in acoustic standing waves: Effect of liquid drop compressibility." J. Acoust. Soc. Am. 154, R5–R6 (2023). https://doi.org/10.1121/10.0020809- Philip L. Marston. "Contrast factor for standing-wave radiation forces on spheres: Series expansion in powers of sphere radius." JASA Express Lett. 4, 074001 (2024). https://doi.org/10.1121/10.0027928.- Philip L. Marston. "Position dependence of the standing-wave radiation pressure quadrupole projection on a sphere applied to drop shape." J. Acoust. Soc. Am. 156, 1586–1593 (2024). https://doi.org/10.1121/10.0028518.Read more from The Journal of the Acoustical Society of America (JASA).Read more from JASA Express Letters. Learn more about Acoustical Society of America Publications.Music Credit: Min 2019 by minwbu from Pixabay. 

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