Physicists have learned to operate acoustic levitation (video)
Physics of Switzerland learned to rise in the air and to control the movement of small droplets and particles with acoustic waves. Article scientists appeared in the journal Physical Review Letters, and its brief description is available on the website of American physical society.
In the work scientists have adopted several standing acoustic wave - vacillations, the highs and lows which remain fixed in space. With their help scientists could cause water droplets to spin around an axis, be flattened, to move along closed orbits in the vertical planes. In the news emphasizes that it was destroying themselves drops.
Scientists say that the same technology can be used for contactless manipulation drops of water and small particles. Namely, they argue that their method will allow in laboratory criteria experiments in microgravity. Currently such experiments require space flights or by plane, or the use of special towers, like droboliteyny.
Acoustic levitation vigorously investigated since the mid 2000-ies. So, for example, there are projects of application of sound waves, inaudible to the human ear. Acoustic levitation more difficult, for example, the method of electromagnetic levitation, but allows you to work with non-conductive current objects.
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