Borromean Rings Logo of the International Mathematical Union (IMU)
Borromean Rings Logo of the International Mathematical Union (IMU)
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.