Mechanical Principles demonstrated with LEGO 03

7 mechanisms demonstrated with the LEGO technic system. 0:00-0:21 Moving gear rack 0:22-0:40 One way mechanism 0:41-0:59 Offset gears 0:59-1:24 Wobbling beam drive 1:25-1:48 Spring pusher 1:48-2:10 Humanoid walking mechanism 2:11-2:29 Peaucellier-lipkin linkage