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BALLS: Happy, Unhappy

$ 21.00 excl. GST

  • Two balls of 25mm diameter apparently identical, do not behave the same when dropped or rolled because of their differing physical properties.
  • The ‘happy’ ball bounces when dropped whereas the ‘unhappy’ ball hits the ground and stays there.
  • When the balls are cooled below room temperature, the ‘happy’ ball bounce reduces and the ‘unhappy’ ball bounce increases.
  • Instructions included.

In stock (can be backordered)

SKU: IEC0186 Categories: ,
BALLS: Happy and Unhappy
  • Two balls of 25mm diameter apparently identical, do not behave the same when dropped or rolled because of their differing physical properties.
  • The ‘happy’ ball bounces when dropped whereas the ‘unhappy’ ball hits the ground and stays there.
  • When the balls are cooled below room temperature, the ‘happy’ ball bounce reduces and the ‘unhappy’ ball bounce increases.
  • Instructions included.

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