= String girdling Earth
{wiki=String_girdling_Earth}
String girdling Earth, often referred to as "Earth girdling," is a concept or thought experiment that involves visualizing the Earth encircled by a string or a belt. This is typically used to illustrate concepts in geometry, physics, or mathematics related to circumference and radius. A common use of this idea considers how much shorter the string would need to be to create a circle that is elevated above the surface of the Earth by a given height.
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