Video: ‘Flock Logic’ unites science and dance Share on Facebook(Link is external) Share on Twitter(Link is external) Share on LinkedIn(Link is external) Email Print By Evelyn Tu on Jan. 31, 2011, noon ‘Flock Logic’ unites science and dancePlay video:(Link is external) Princeton professors Naomi Leonard and Susan Marshall combine the science of motion and the art of movement in a special course and two performances.