I have been occasionally reading the posts over the past couple months on differentials, and then saw this one made out of legos. Can anyone provide a link or good technical explanation of what one is and how it works? These pictures do not do it for me.
Thanks, and nice lego building skills

- Patrick
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Systems Engineer - Kiva Systems, Woburn MA
Alumni, Former Mechanical Team Leader - Cornell University Robocup - 1999, 2000, 2002, 2003 World Champions
Founder - Team 639 - Ithaca High School / Cornell University
Alumni - Team 190 - Mass Academy / WPI