This is a CT scan of a wind-up bunny which plays the drums and whose torso simultaneously rocks from side to side. The internal mechanism is quite surprising in that it has a windmill-like cog wheel that controls the arm movement and also makes the bunny rock back and forth. Examine the mechanism closely in the detailed view. Further, the spring and gears are clearly demonstrated in the movie.
view movie [3.3 Mb]
processed with Osirix software
on a Macintosh computer
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