Sandfigurenpendel / Hanging Sand Pendulum

Stations-ID: D036

?? English instruction:

A long, heavy pendulum is set in motion. Stay a while, calmly observing the patterns it creates.

• Observe the movements of the pendulum, how do they change over time?

• How long does it take until the pendulum rests once more?

• Which basic shape can you recognize in the patterns in the sand?

In 1851, the French physicist Jean Bernard Léon Foucault (1819-1868) proved that the earth rotates using a pendulum of 67m length. In 1997, Imaginata repeated the experiment in the then-gutted ‘Uni-tower’ in Jena, earning a mention in the Guiness book of records. Today, the pendulum draws it’s patterns on the Imaginata’s own premises.

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