Places of Interest nearby
Location address: United Kingdom, Perth and Kinross
Number of texts: 2
Schiehallion (Scottish Gaelic: Sìdh Chailleann) is a prominent mountain in Perth and Kinross, Scotland. Schiehallion has a rich botanical life, interesting archaeology, and a unique place in scientific history for an 18th-century experiment in ‘weighing the world’. The mountain’s popularity amongst walkers led to erosion on its footpath and extensive repairs were undertaken in 2001.
Linked themes: Geology
The Schiehallion experiment was an 18th-century experiment to determine the mean density of the Earth. Funded by a grant from the Royal Society, it was conducted in the summer of 1774 around the Scottish mountain of Schiehallion, Perthshire. The experiment involved measuring the tiny deflection of a pendulum due to the gravitational attraction of a nearby mountain. Schiehallion was considered the ideal location after a search for candidate mountains, thanks to its isolation and almost symmetrical shape. One of the triggers for the experiment were anomalies noted during the survey of the Mason–Dixon Line.