Sound is defined as the result of a succession of regular and periodic vibrations. Noise is instead caused by motions that are irregular, as much in time as in intensity. 'A musical sensation,' says Helmholtz 'appears to the ear as a perfectly stable, uniform, and invariable sound.'
Luigi RussoloRelated topics
ear intensity invariable irregular musical noise regular result sensation sound stable succession time uniform helmholtzRelated quotes
If there is some determinate succession of defined whole real numbers, among which there exists no greatest, on the basis of this second principle of generation a new number is obtained which is regarded as the limit of those numbers, i. e. is defined as the next greater number than all of them.
Georg Cantor
To understand the intensity of driving an F1 car, you have to be in it. When you're driving a 750hp machine at 200mph, the noise and the vibrations are incredible. The G-force when you take big corners is like someone trying to rip your head off. You hit the brakes, and it feels as if the skin is being pulled off your body.
Jenson Button
And that was as far as he got before i heard it. The thumping of footsteps, running up the lawn toward me: It seemed like I could hear it through the grass, like leaning your ear to a railroad track and feeling the train coming, miles away. As the noise got closer I could hear ragged breaths, and then a voice.
Sarah Dessen
