How tweet it is

(WICHITA, Kan.) —
Scientists say they can measure how happy we are by tracking our tweets.
University of Vermont researchers came up with a software tool to monitor trends in our tweets-whether they are positive or negative.As you might expect, they found happier tweets toward the end of the year around the holidays, also on weekends.
They also measured events, like the wedding of Prince William, and the deaths of Michael Jackson and Osama Bin Laden.
See what they discovered here, in reporting by the Boston Globe.