map of forces' effect.Illustration for Foucault’s Pendulum. This is frequently used to show rotation of Earth around its own axis.

Foucault Pendulum of Valdivia

Foucault Pendulum of Valdivia in Valdivia Chile

An excerpt from the illustrated supplement of the magazine "Le Petit Parisien" dated November on the fiftieth anniversary of the experiment of Leon Foucault demonstrating the rotation of the earth.

Sand Pendulum 38cm/51cm Foucaults Pendulum Sand Art Patterns

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Foucault Pendulum, which proves the earth rotates, is located in the rotunda of the Charles C. Gates Planetarium in City Park. The original was built in Paris in 1851, using an Iron ball at the end of a 200-foot wire. Viewing action is Mrs. Dorothy Hodgkins of planetarium staff and Don Lunetta, curator. Credit: Denver Post

ITAP of Foucaults Pendulum

ITAP of Foucaults Pendulum

Foucault's Pendulum | Folio Illustrated Book by Neil Packer

A comprehensive discussion of why a Foucault pendulum that is not located on the poles precesses at a slower rate than at the poles.

How Does Foucault's Pendulum Prove the Earth Rotates?

How Does Foucault’s Pendulum Prove the Earth Rotates?