Foucault pendulum model

[Foucault Pendulum Model]

Foucault Pendulum Model, clear, 34.5cm high. Made in Europe. The old collection of the Qing Palace
This instrument is a teaching tool, consisting of 4 columns, which are folded into a cylindrical shape. The black patent leather cylinder box is attached, 44 cm in length and 4.3 cm in diameter. When using, first open the four columns to make them quadrilateral, hang a solid copper ball with a diameter of 3 cm in the middle, and the ball moves back and forth along the arc, which can prove the principle of the earth’s rotation