mxplx

The Math Trick Behind MP3s, JPEGs, and Homer Simpson’s Face

Kind
Blog
Date
NOV 06, 2013
Publisher
Nautilus Blog
Retrieved
Nov 7, 2013

Open source

1 meme from this reference

Fourier Transformations

So what was Fourier’s discovery, and why is it useful? Imagine playing a note on a piano. When you press the piano key, a hammer strikes a string that vibrates to and fro at a certain fixed rate (440 times a second for the A note). As the string vibrates, the air molecules around it bounce to and fro, creating a wave…