English Foucault's Pendulum
First floor.- In the First Floor of the Science Museum, a pendulum hanging from the very top of the buildings eaves, with a circular base of moving parts, sets out to demonstrate that the earth rotates around its own axis.
With a longitude of 34 metres, the pendulum is one of the longest in the world; its complete cycle of revolution is approx. 34 hours. In reality, the pendulum is not spinning because it is the Earth itself, and with it, the entire Museu. Documentation can consult and to admire an element in miniature.
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