Very Cool Video: Acoustic Levitation – Liquid Droplets Floating On Sound Waves In Midair
Just cool to watch, knowing what’s taking place.
From Argonne Labs comes this intriguing video demonstrating the acoustic levitation of liquids on a piece of equipment developed for NASA to simulate microgravity conditions.
The acoustic levitator uses two small speakers to generate sound waves at frequencies slightly above the audible range – roughly 22 kilohertz. When the top and bottom speakers are precisely aligned, they create two sets of sound waves that perfectly interfere with each other, setting up a phenomenon known as a standing wave.