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The
Revolving Bridge is an invention by Leonardo da Vinci where his
military
and hydraulic occupation met: the bridge that could be swept away from
the river on one of its pylons not only prevented advancing enemies
from crossing but also allowed large ships to travel the water without
being hindered by the bridge. In the book, you will find:
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Parts you need for this
robot in
addition to the
ones contained in the NXT Retail kit (click on the parts to
view the sets that contain them):
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