The Earth’s Rotation Day

Posted by Marge on 01/08/2018 in History or Holidays |

This day memorializes the day in 1851, when French Physicist Leon Foucault, demonstrated the Earth rotates on its axis. To demonstrate and prove his theory, Foucault suspended a lead-filled brass sphere, now called the Foucault Pendulum from the top of the Pantheon in Paris. 



What is the Pantheon? The Panthéon is a building in the Latin Quarter in Paris. It was originally built as a church dedicated to St. Genevieve and to house the reliquary châsse containing her relics but, after many changes, now functions as a secular mausoleum containing the remains of distinguished French citizens

Foucault showed that the plane of the swing of the pendulum rotated in relation to the Earth’s rotation. Many Foucault pendulums have been installed around the world. They are mainly found at universities, science museums, and planetariums. While the United Nations headquarters in New York City has one, the largest Foucault pendulum in the world, Principia, is contained at the Oregon Convention Center.

How to Celebrate?

Since most of us don’t have a space or science museum to learn more about the Earth’s rotation and the effect it has on us as humans. Your only other choice would be to make a model of the earth and the sun to learn more about the Earth’s rotation. Here’s one website with great instructions. Copy and paste it into your search engine and have Fun.



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