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A
fan blows white flakes around inside a 1 meter diameter black
cylindrical box with a glass top. The flakes form dunes that move
and shift with the wind. Eroding in some places, traveling a while,
then being deposited elsewhere, the dunes move. Visitors turn
a small wheel that changes the direction in which the fan blows
the air. As the air flow changes, the pattern of the dunes also
changes.
The
dunes of plastic flakes in this exhibit show behavior like that
of dunes formed by wind blowing over sand and snow. The shape
of the dunes influences the pattern of the wind that in turn influences
the shape of the dunes.
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