Editing Foucault pendulum (section)

== Installations ==
{{Further|List of Foucault pendulums}}

There are numerous Foucault pendulums at universities, science museums, and the like throughout the world. The [[United Nations General Assembly Building]] at the [[United Nations headquarters]] in New York City has one. The [[Oregon Convention Center]] pendulum is claimed to be the largest, its length approximately {{cvt|27|m}},<ref>{{cite web|url=http://jonesginzel.com/project/principia/|title=Kristin Jones - Andrew Ginzel|access-date=5 May 2018}}</ref><ref>{{cite web|url=http://ltwautomation.net/casestudies.html#Pendulum|title=LTW Automation Products|website=ltwautomation.net|access-date=5 May 2018|url-status=dead|archive-url=https://web.archive.org/web/20160429210824/http://ltwautomation.net/casestudies.html#Pendulum|archive-date=29 April 2016}}</ref> however, there are larger ones listed in the article, such as the one in Gamow Tower at the [[University of Colorado]] of {{cvt|39.3|m}}. There used to be much longer pendulums, such as the {{cvt|98|m}} pendulum in [[Saint Isaac's Cathedral]], [[Saint Petersburg]], [[Russia]].<ref>{{Cite web| url=https://visitmurmansk.info/en/the-first-foucault-pendulum-in-russia-beyond-the-arctic-circle/| title=The first Foucault pendulum in Russia, beyond the Arctic Circle| date=2018-06-14| access-date=2019-03-21| archive-date=2019-03-21| archive-url=https://web.archive.org/web/20190321085755/https://visitmurmansk.info/en/the-first-foucault-pendulum-in-russia-beyond-the-arctic-circle/| url-status=dead}}</ref><ref>[https://encyclopedia2.thefreedictionary.com/Foucault+pendulum Great Soviet Encyclopedia]</ref>

The experiment has also been carried out at the [[South Pole]], where it was assumed that the rotation of the Earth would have maximum effect.<ref>{{cite news |title=Here They Are, Science's 10 Most Beautiful Experiments |first=George |last=Johnson |url=https://www.nytimes.com/2002/09/24/science/here-they-are-science-s-10-most-beautiful-experiments.html?pagewanted=all&src=pm |newspaper=The New York Times |date=September 24, 2002 |access-date=September 20, 2012 |url-status=live |archive-url=https://web.archive.org/web/20120531225159/http://www.nytimes.com/2002/09/24/science/here-they-are-science-s-10-most-beautiful-experiments.html?pagewanted=all&src=pm |archive-date=May 31, 2012 }}</ref><ref>{{cite book |last=Baker |first=G. P. |year=2011 |title=Seven Tales of the Pendulum |pages=388 |publisher=[[Oxford University Press]] |isbn=978-0-19-958951-7}}</ref> A pendulum was installed in a six-story staircase of a new station under construction at the [[Amundsen-Scott South Pole Station]]. It had a length of {{cvt|33|m}} and the bob weighed {{cvt|25|kg}}. The location was ideal: no moving air could disturb the pendulum. The researchers confirmed about 24 hours as the rotation period of the plane of oscillation.