Borromean Rings Logo of the International Mathematical Union (IMU)
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This Demonstration shows the logo of the International Mathematical Union (IMU). The three rings are a special case of the Borromean rings; as they are perpendicular to each other, they fit into an icosahedral frame, and each has an overall length-to-width ratio close to the golden ratio. Vary the controls to explore related arrangements.
Contributed by: Sándor Kabai (September 2013)
With additional contributions by: Lajos Szilassi
Open content licensed under CC BY-NC-SA
 "International Mathematical Union (IMU)." (Dec 12, 2012) www.mathunion.org.