“Schiehallion:  The attraction of mountains, ‘weighing the world’ and contour lines”

Schiehallion from the Braes of Foss

On Friday, 19th November, 2021, Dr Liz Auty, East Schiehallion Property Manager for the John Muir Trust,  presented a talk to our Society on the subject:  “Schiehallion:  The attraction of mountains, ‘weighing the world’ and contour lines”. Liz discussed Neville Maskelyne’s 1774 expedition to Schiehallion, the people, the experiment and the mountain.

The Schiehallion experiment was set up to determine the mass and mean density of the Earth and involved measuring the tiny deflection of a pendulum due to the gravitational attraction of a nearby mountain. After a search for candidate mountains, Schiehallion was considered the ideal location thanks to its isolation and almost symmetrical shape.

Towards the end of her presentation, Liz talked about the work that she does at East Schiehallion as Property Manager for the John Muir Trust and, in particular, to the collaborative work that the John Muir Trust carries out in the area with the Heart of Scotland Forest Partnership.

You can view Liz’s talk to our Society here:

If you wish to view this video at a larger size, click on the ‘full screen’ button at the bottom right-hand corner of the image above: