The Foucault pendulum at the Griffith Observatory in Los Angeles
French physicist Lon Foucault first demonstrated his pendulum experiment in 1851 in Paris. Since then, its emerge as a mainstay of technological know-how facilities and museums round the sector. His easy, stylish toollittle more than a weight on a wire, with suspending hardware that lets in the pendulum to swing in any routeis taken into consideration the first to show the rotation of the Earth on its axis. This Foucault pendulum swings inside the vital rotunda of the Griffith Observatory in Los Angeles.