Pendulum above Prague
Letenské sady with a breathtaking view of the whole Prague and its magnificent bridges was adorned at the General Czechoslovak Exhibition in 1991 by an installation called Time Machine. The kinetic sculptural object by Vratislav Karel Novák is generally known as the Prague Metronome. It should be a reminder of the warning past and at the same time a symbol of the new times and a new era.
The pendulum at Letná stands on the site of the infamous monument of J. V. Stalin with extensive underground spaces. The monument remained here for 7 years, in 1962 he was blasted three times. Disturbed statics of the pedestal complicated the installation of the pendulum later.
The metronome at Letná, which belongs to the PSN portfolio, is a symbol of unstoppable passage of time. However, unstoppable time takes its toll on an almost 25-meter-high and 7-ton weighing machine. This is also because it was originally intended to be a temporary building. To this day, however, it is swinging from side to side over the Čechův Bridge and the embankment of Edvard Beneš, much like Mälzel's famous metronome with a reverse pendulum.
Regular maintenance of the pendulum at Letná cannot be ignored. That is why the needle disappeared from the pendulum at the beginning of February 2020 so that we could reconstruct it. The lower square part of the dismantled needle was preserved, the upper part of the tubes was replaced by a new one. Other parts of the moving equipment were repaired as well. Metronome is still being repaired and the pendulum should be fully functional again in spring.