Assorted links

1. A network analysis of the numbers in pi
   
   
2. Bicycle Infrastructure Networks and Ridership in 74 US Cities
   
   
3. The antipode of your current location
   
   
4. Immigration is saving the US from an aging crisis
   
   
5. Tom Vanderbilt: the counterintuitive science of traffic (ht Leo Monasterio)
   
   
6. Average Annual Household Carbon Footprint by ZipCode in the US and average vehicle miles traveled by households by ZipCode in the US
   
   
7. Beautiful picture of Tokyo as seen by Takashi Kitajima

[image credit: Takashi Kitajima]