1851 CE
Foucault Pendulum At The Pantheon
About this moment
The Foucault pendulum or Foucault's pendulum is a simple device named after French physicist Léon Foucault, conceived as an experiment to demonstrate the Earth's rotation. If a long and heavy pendulum suspended from the high roof above a circular area is monitored over an extended period of time, its plane of oscillation appears to change spontaneously as the Earth makes its 24-hourly rotation. This effect is greatest at the poles and diminishes with lower latitude until it no longer exists at Earth's equator.
People
- Theodoric the Great · 454 CE – 526 CE
- Alfred the Great · 849 CE – 899 CE
- Otto I the Great · 912 CE – 973 CE
- Abbas the Great · 1571 CE – 1629 CE