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Rattleback


Puzzling and fun to watch.

  • Demonstrate Newton’s three laws of motion with the flick of a finger!
  • The Rattleback has been written about in Scientific American
  • Pack of two
Due to its offset center of gravity, this scientific curiosity has a preferred direction of rotation. It wants to spin counterclockwise. Its spin bias is so strong that when it is spun clockwise, it will turn through a few rotations, stop, “rattle” (or rock up and down on its long axis), then automatically reverse itself and spin counterclockwise.


   
 

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Item # Description Unit Availability Price Quantity
470146-171 Rattleback
Pack of 2 Retrieving

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