Now, researchers say a new technology that relies
on microscopic bubbles may bring these nifty devices a step closer to reality.
Even though it might not look like much is happening, the 42,000 Hz of vibration
create microscopic bubbles that lift dirt without any harsh cleaners or chemicals.
If the sound is loud enough and at the right frequency, the pressure at the trough of the wave will be so low that the fluid will boil,
producing microscopic bubbles.
Dale Huber of Sandia National Laboratories in Albuquerque, New Mexico, and his team developed a process that induces cavitation —
microscopic bubbles that crop up when sound is passed through water — on the surface...
I wondered whether a flying particle might, under suitable conditions, trigger the formation of
the microscopic bubbles that start the boiling process.
Bubbles in a champagne glass may add a festive fizz to the drink, but
microscopic bubbles that form in a material called metallic glass can signal serious trouble.