Acoustics is the science of sound as it reacts to air, water and solid materials. Learn about topics from radar to white noise, plus find out why you can hear the ocean in a seashell.
How Acoustic Levitation Works
The idea that something so intangible can lift objects can seem unbelievable, but it's a real phenomenon. Learn how acoustic levitation takes advantage of the properties of sound to cause solids, liquids and heavy gases to float.