Foucault's pendulum in the Pantheon, Paris, in 1851, demonstrating both the rotation of the Earth and the concept of inertia. Leon Foucault (1819-1861) French physicist. Wood engraving, Paris, 1888.
{"Image ImageDescription": "530779 Foucault's pendulum in the Pantheon, Paris, in 1851, demonstrating both the rotation of the Earth and the concept of inertia. Leon Foucault (1819-1861) French physicist. Wood engraving, Paris, 1888.; Universal History Archive/UIG;  it is possible that some works by this artist may be protected by third party rights in some territories.", "Image Copyright": "Universal History Archive/UIG / Bridgeman Images"}