Clementoni 61591 Manual page 20

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In the third century BC, Archimedes was a great scientist
and experimenter with levers.
Note: the lever of the see-saw must rotate freely around the
fulcrum.
Try it yourself: find the equilibrium of the see-saw by
varying the weight and distances from the fulcrum of the
Resistance and Effort forces.
TRY IT OUT!
The see-saw is a class 1 lever
Final assembled model
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