Jean Bernard Leon Foucault was the French physicist who in 1851 set up an enormous pendulum in the Pantheon in Paris, France. He proved the earth was slowly…
orn in 1819, Jean Foucault was a French physicist best known for his invention of the Foucault pendulum, a device that demonstrates the Earth's rotation. In 1850, he accurately measured the speed of light. He also discovered eddy currents, movement induced in conductors when there is a change in a magnetic field. He also invented an ingenious system for testing surface defects in telescopes.
In 1851 physicist Jean Bernard Léon Foucault demonstrated the rotation of the Earth by his experiment conducted in the Panthéon, by constructing a 67 metre Foucault pendulum beneath the central dome. The original pendulum moved in 1851 to the Conservatoire des Arts et Métiers, but was returned in 1995.
Foucault's Pendulum (original title: Il pendolo di Foucault) is a novel by Italian writer and philosopher Umberto Eco. It was first published in 1988; the translation into English by William Weaver appeared a year later. Foucault's Pendulum is divided into ten segments represented by the ten Sefiroth. The novel is full of esoteric references to the Kabbalah, alchemy and conspiracy theory, so many that critic and novelist Anthony Burgess suggested that it needed an index