In the Flower Garden in Kroměříž, Foucault's pendulum will be put into operation

Kroměříž - The Foucault pendulum will be reactivated in the Květná garden in Kroměříž starting on Friday afternoon. Visitors will be able to once again see the experiment, which confirms that the Earth actually rotates around its axis, after the repair. This was stated by Dagmar Šnajdarová, spokesperson for the Kroměříž office of the National Heritage Institute.
     The dominant feature of the Květná garden is the garden pavilion - Rotunda, in the center of which the Foucault pendulum was installed in 1908 by the Kroměříž gymnasium professor František Nábělek. The pendulum weighs 30 kilograms and hangs on a 25-meter long string. "This May, it had to be dismantled and entrusted to restoration experts," said Šnajdarová.
     The Foucault pendulum is named after the French physicist Jean Bernard Léon Foucault (1819 - 1868) and represents an important experiment that confirms that the planet Earth rotates around its axis. Foucault conducted the first pendulum experiment in 1851 at the Pantheon in Paris. It was already known at that time that the Earth rotates, but the Foucault pendulum was the first clearly visible evidence and caused a great sensation in both professional circles and the general public.
     The Foucault pendulum is very complex in its construction because even a small inaccuracy can cause further deviations in the plane of oscillation, which then predominate over the influence of Earth's rotation. The start of the pendulum itself is also critical. This is done by burning the string that holds the pendulum in its initial position, thus preventing unwanted sideways movements of the pendulum.