Pit and Pendulum

Pit and Pendulum

120 points (Avail: 0)
In Stock
Item #: PIT-100

Replacement Sand for Pit and Pendulum

22 points (Avail: 0)
In Stock
Item #: PIT-105
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This pendulum is mesmerizing to watch as it traces beautiful Lissajous patterns in sand. A favorite of elementary school science tables, it can be used at upper levels to study harmonic motion as energy is transferred from a pendulum swinging in one plane to swinging in another plane at right angles. A Lissajous figure results from the two sine curves meeting at right angles. 21 inches tall!

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