What is it? It’s the sound of knowledge!
More specifically, it’s the sound of Wikipedia being edited. Tones play in real time, signifying the addition (bells) and subtraction (strings) of information to Wikipedia articles. The lower the tone, the larger the edit. There’s even a beautiful tone for new Wiki users registering.
What’s even cooler is the fact that the map displays which Wiki pages are being edited and allows you to click through to them if you find one particularly intriguing.
Seriously, this is really beautiful if you think about the fact that its arising out of a bunch of different people with a bunch of different information putting that information out there to share with others.
Very, very cool.