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.
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If you have trouble sleeping you might have been told to get a white noise machine. But white isn't the only color of noise out there.
Overtone is a sound accompanying the main tone produced by a vibrating body. The number and loudness of overtones determine the timbre, or tone color, of a musical sound.
An object free to vibrate tends to do so at a specific rate called the object's natural, or resonant, frequency.
When sound waves strike the ear, these waves produce the sensation of sound. Let's take a look at how sound waves work.
I was watching an old movie today, and two kids (neighbors) were talking to each other using two tin cans and a string. Does that really work? If so, why does it work?
Do you remember holding a large conch shell up to your ear to hear the ocean? Why does this work even when you're far away from the sea?
When an airplane flies faster than the speed of sound, you hear a large booming sound. But how can something that seems so simple cause such a boom?