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$ All Prices are in New Zealand Dollars
Free delivery for orders over $150 except DG chemicals* & Rural areas.

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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