Adrian Barnes

7,9,15,18 On the radiation pressure on small spheres ,” J. Acoust. Soc. Am. 100(2), 1231– (1996). 15. Gorkov, L. P., “ Forces acting on a small particle in an acoustic field within an ideal fluid ,” Dokl. Akad. Nauk SSSR 140(1), 88 (1961). On the acoustic radiation pressure on spheres ,” Proc. R. Soc. A 147(861), 212– (1934). When the forces exerted on an object are strong enough and converge from all directions, the particles can be levitated and stably trapped.