What we're reading: the social circles of cities

Cities' social circles; Microsoft for Nissan Leaf; Position-less MRI machine; infrastructure politics; military bomb detection.

1.) The social network of cities: who sends delegates where.

2.) Why Nissan chose Microsoft for its all-electric Leaf EV.

3.) Harvard's Matthew Rosen builds an MRI machine that doesn't require a patient to lie down.

4.) Why anti-transportation elections are good for infrastructure.

5.) The Pentagon spends $19 billion to discover that the best bomb detector is a dog.

This post was originally published on Smartplanet.com