Data is from the 2010 Census, at the tract level. The links are hidden, but each tract is connected to each of its neighbors. The lengths of these connections encode the disparity between racial make-up between neighboring tracts. So, if a ‘mostly white’ tract is connected to another ‘mostly white’ tract, then the connection is short. If a city had uniform proportions of races in each tract, the map would not move much. However, longer connections occur where there is a sharp change in the proportions of white and black populations between neighboring tracts. These longer connections create rifts in the map and force areas apart, in some ways mimicking the real-world effects of these racial lines.
“In the Air is a visualization project which aims to make visible the microscopic and invisible agents of Madrid´s air (gases, particles, pollen, diseases, etc), to see how they perform, react and interact with the rest of the city.”
“The visualization tool is a web-based dynamic model which builds up the space the components generate, where through data crossing behavior patterns emerge. The results of these data feed a physical prototype of what we have called a “diffuse façade”, a massive indicator of the air´s components through a changing cloud, blurring architecture with the atmosphere it has invaded and mediating the activity of the participants it envelops.”
Cascade allows for precise analysis of the structures which underly sharing activity on the web. This first-of-its-kind tool links browsing behavior on a site to sharing activity to construct a detailed picture of how information propagates through the social media space.