Monday, December 7, 2009

Spot 10 balloons, win $40,000 - Digits - WSJ

If you look up and see red weather balloons this weekend, take note. You’ve unwittingly entered into a social experiment.

The Defense Department’s Defense Advanced Research Projects Agency, or Darpa, launched 10 balloons, each eight feet wide, around the country as part of its “Network Challenge.” The first person or team to locate all of them will win $40,000. Darpa says that the contest is meant to look at how “information spreads and propagates and becomes viral...”