samzenpus from the they-like-to-move-it-move-it dept.
sciencehabit writes "The tragic opera Rigoletto may move you to tears, but here's a more literal application of the moving power of sound. Sound waves with frequencies just above human hearing can levitate tiny particles and liquid droplets and even move them around, a team of engineers has demonstrated. The advance could open up new ways to handle delicate materials or mix pharmaceuticals."
One has to look out for engineers -- they begin with sewing machines
and end up with the atomic bomb.
-- Marcel Pagnol