Sound

= What is Sound? =

** How is sound created? **
Sound is created by vibrations*. Vibrations are created from objects that move, shake, or hit other objects. This vibration makes the air vibrate. And, so as the air vibrates, the sound moves through it. When the sound makes it to our ear, we can hear it. Hearing is one of the five senses, it is the ability to detect a sound. Evolution* has made us be able to detect sound as it helps us survive. Sounds have been used through many ages to communicate, warn someone of danger, entertain, etc...



The above picture shows us how sound works. As the structure vibrates, the air vibrates. So, the sound eventually moves to the person's ear. Drums are a perfect example of how sound works. As the drumstick hits the drum, the membrane of the drum vibrates. This creates sound waves. The sound is then amplified because of the material the drum frames are made out of. When our ears detect the sound, they immediately send the signal to our brain. As amazing as our brain is, it quickly interprets the signal and finds meaning to them. **
 * Example:**
 * How do we understand sound?

How is voice transmitted from one computer to another?
Voice transmission is actually quite simple. It works as a telephone would. First, the receiver on your laptop or computer identifies the vibration of your voice when you speak into it. A microchip inside the computer turns the vibration into a series of numbers. Then, it converts it into a radio wave*. They are known as electromagnetic radio waves*. These waves travel antenna to antenna until they make it to the other computer.


 * Note: the definition to these words can be found in the Video Chatting Dictionary.

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