A little digital recreation of an installation I saw at Tate Modern called "The Way Earthly Things Are Going" by Emeka Ogboh.
http://www.tate.org.uk/visit/tate-modern/display/voices/emeka-ogboh
The data comes from an API made by Richard Allen (using Google Spreadsheets!?) of the FTSE 100 (http://ftse.richardallen.co.uk/)