Introduction;
Sound is all around us, some sounds are pleasant like a bird's song and
other sounds are irritating, like the sound of a highway. Irritating
sounds are called noise, and world is becoming a very noisy place. This
is a web quest to investigate the nature of sound, and try to find ways
to reduce or eliminate noise. Because sound is a moving mass of air or
some other medium, there are some interesting way to deal with noise.
So if you are up to the challenge let's begin.
This is a FA-18 Hornet breaking the sound barrier 7 July 1999, this
makes a lot of noise it's called a sonic boom! Click here to hear one. http://www.youtube.com/watch?v=-d9A2oq1N38
