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."
Men occasionally stumble over the truth, but most of them pick themselves
up and hurry off as if nothing had happened.
-- Winston Churchill