Change of the plane of oscillation of a Foucault pendulum from simple pictures

Thomas F. Jordan, J. Maps
2010 American Journal of Physics  
The change of the plane of oscillation of a Foucault pendulum is calculated without using equations of motion, the Gauss-Bonnet theorem, parallel transport, or assumptions that are difficult to explain.
doi:10.1119/1.3459935 fatcat:6fyiab7td5gj3i33fg6bw7gc2m