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Woodpecker hammering down on a pole
[s-wp]
$4.00USD*

Never fails to bring a smile on your face

A funky haired cute woodpecker is busy sliding and pecking
the wood on his way down

There are prestigious mechanical engineers on the web to explain the
Non Linear Dynamics involved in the action of this toy.

"The Woodpecker Toy is a system which can only operate in the presence of friction as it relies on combined impacts and jamming. Restitution of the beak with the pole is not essential for a periodic motion but enlarges the resemblance with the typical behaviour of a woodpecker. The motion of the toy lies in a plane, which reduces the number of degrees of freedom to model the system" only pink available

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This product was added to our catalog on Friday 24 September, 2004.
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