Our Foucault Pendulum is back in its rightful place today following repair! @prestoncouncil @leponline @blogpreston @HarrisFriends pic.twitter.com/e9rtxz9aid

— Harris Museum (@HarrisPreston) September 25, 2017

Foucault’s pendulum is back in its rightful place in Preston’s museum.

Swinging from the roof of the Harris Museum and Art Gallery the cable was repaired.

Attached 120ft up to the roof of the Harris the cable was suffering from wear and tear.

The Harris shared a video on Monday (23 September) showing the pendulum back in position and operating.

The pendulum has to be looked after in perpetuity.

Read more: Free public WiFi turned on at the Harris and Flag Market

Foucault’s pendulums were named after French physicist Leon Foucault and were the first proof of rotation.

They demonstrated, in 1851, the rotation of the earth for the first time.