"Who is the author of the books ""Foucault's Pendulum"" and ""The Island of the Day Before""?"
The Island of the Day Before The Island of the Day Before The Island of the Day Before () is a 1994 historical fiction novel by Umberto Eco set in the 17th-century during the historical search for the secret of longitude. The central character is Roberto della Griva, an Italian nobleman stranded on a deserted ship in the Pacific Ocean, and his slowly decaying mental state, in a backdrop of Baroque-era science, metaphysics, and cosmology. Roberto della Griva, a 17th-century Italian nobleman, is the sole survivor of a shipwreck during a fierce storm. He finds himself washed up on an abandoned ship in a harbour through
Foucault pendulum Foucault pendulum The Foucault pendulum ( ; ) or Foucault's pendulum is a simple device named after French physicist Léon Foucault and conceived as an experiment to demonstrate the Earth's rotation. The pendulum was introduced in 1851 and was the first experiment to give simple, direct evidence of the earth's rotation. Today, Foucault pendulums are popular displays in science museums and universities. The first public exhibition of a Foucault pendulum took place in February 1851 in the Meridian of the Paris Observatory. A few weeks later, Foucault made his most famous pendulum when he suspended a 28-kg brass-coated lead bob