This is a visualization of text phrases taken from pager data during September 11th, 2001 from 8am until 8pm. The larger the text the more frequently it was used during the 12 hour period. Text appears bright during the times of high usage and fades away otherwise. Color hues are cosmetic.

Data provided by 911.wikileaks.org .

Visualization done by Jeff Clark, Neoformix.com, using custom code developed with Processing.

More details can be found at:
neoformix.com/2009/Sep11PagerData.html