Illustrations of the inner mechanisms of the DANGAERI doll
In the following figures, a doll is watched from the side because of the easier understanding of the principle of a back flip, referring to a commercial doll. The mercury is replaced by three iron balls and the tube in which mercury moves is substituted by a pipe which passes the head and body of the doll. The "C" in the figures means a center of rotation and the "S" means a stopper.
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