The Foucault Pendulum: Jean Foucault

The student who wants to explain why and how it works is a science professor's dream student. It is therefore meaningful to enhance the basic characteristics of students through the structure of the first few steps of the science building. A corridor of a scientific building evokes this scientific marvel and rational thought through its systematic design which consists of Foucault pendulum whose design is the center. Foucault's pendulum was named after French physicist Jean Foucault.

There are double-pendulum pendulum, Foucault pendulum, torsional pendulum, etc. in the kind of pendulum. Double pendulums are used to record the irregular rotation of the earth and detect earthquakes. Foucault pendulum invented by French physicist Leon Foucault is used to indicate the rotation of the earth. Torsion is not a strict pendulum, but because it does not shake by gravity, it is usually used for timing such as adjusting the movement of the watch.

In 1851, Jean BernardLéon Foucault showed that the pendulum surface of a pendulum like a gyroscope tends to remain the same regardless of the pivoting motion that can be used to prove the rotation of the earth. . He can hang the pendulum from the dome of the Pantheon in Paris and freely swing two dimensions (later called Foucault pendulum). The length of the rope is 67 meters (220 feet). As the pendulum starts moving, you can see that the oscillating plane rotates clockwise or rotates 360 ° in about 32 hours. This is the first demonstration of the rotation of the earth without relying on astronomical observations, Foucault pendulum was exhibited in many cities, attracted many spectators, so "Pendulum fanaticism" happened.

3 Use a special pendulum called Foucault pendulum to prove that the earth is spinning. The Earth is known to rotate about its axis, but Foucault pendulum is the earliest evident evidence of this concept. To reproduce it, you need a large pendulum that is at least 16 feet long and weighs more than 25 pounds to minimize external factors such as wind and friction.