Rube Goldberg Machine Team Event In Cambridge

CAMBRIDGE, MA - NOVEMBER 25: Spectators watch as a balloon rises from the final link during the 19th annual Friday After Thanksgiving (F.A.T.) Chain Reaction Event at the Rockwell Cage Gymnasium in Cambridge, MA on Nov. 25, 2016. The theme of this year's event is Symmetry, and local artists Arthur Ganson and Jeff Lieberman will mastermind the choreography of this Rube Goldberg machine, assisted by teams and participants who range from Girl Scout troops and school groups to artists and engineers. Over 20 teams from all over the country will participate in this one-of-a-kind engineering feat. (Photo by Craig F. Walker/The Boston Globe via Getty Images)