Time-Lapse Twitter

Tweets Reveal The Mood Of The Nation

Researchers from Northeastern University and Harvard University have analyzed 300 million tweets over a three-year period and mashed them up with census data and Google Maps, Mashable reports.

This is a time-lapse visualization of the mood of the nation as it fluctuates during the course of a typical day. Green is happy, rust represents unhappy, and beige is neutral. [See the time-lapse video below based on the following chart.]