This is an interesting curio – a video that shows the mood of residents across the United States over an entire day, as indicated by their tweets, culminating in a collective barometer of emotion.
Twitter is a gigantic repository for our collective state of mind. Every second, thousands of tweets reveal what everybody and their mother had for lunch, what Justin Bieber is up to, or what magnificent link you should be checking out right now. Individually, each tweet is mostly interesting to friends/fans of the tweeter, but taken together they add up to something more.
In the video, green corresponds to a happy mood and red corresponds to a grumpier state of mind. The area of each state is scaled according to the number of tweets originating in that state. Note how the East Coast is consistently 3 hours ahead of the West Coast, so when we’re sleeping in Boston, the Californians are tweeting away. It’s also interesting that better weather seems to make you happier (or rather, that better weather is correlated with happier tweets): Florida and California seems to be consistently in a better mood than the remaining US. Also note how New Mexico and Delaware behave very differently from their neighbors.
It moves like a living thing, which of course is exactly what it is.
(Source: Complexity And Social Networks Blog.)