Scratch a friendly cat behind the ears and she’s likely to reward you with a deep purring. Have you ever wondered exactly how a cat makes this noise, and why a cat would want to do so in the first place? Learn more on this Moment of Science.
Did you know your right and left ears process sound differently? Learn more on this Moment of Science.
You may not realize it, but you're full of emptiness. Learn more on this Moment of Science.
There's a whole world of sound, called infrasound, that your ears can't pick up. Learn more, on this Moment of Science.
Recent studies show that exposure to loud noises hurts more than your ears--it can even hurt your heart. Learn more on this Moment of Science.
Have you ever noticed that when you hear your own voice on tape it doesn't sound like you?
By temporarily altering the shape of the pinnas with plastic molds, researchers in the Netherlands found that indeed, people with new pinnas had a hard time locating sound sources.
Although ants usually communicate through smell, they also use sound to send distress calls and warnings about danger. Since they don’t have ears, scientists believe that they sense sound vibrations in their knees.
By trapping all sorts of dirt and debris, the waxy stuff your ear produces helps keep the ear clean. Q-tips are commonly used to clean the wax from your ear when it gets to be too abundant.
Counted in this category of shocking sounds are the accidental popping of a balloon and the forceful smashing of an air-filled paper bag. But why are these things so loud?