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Ford circles. This list of circle topics includes things related to the geometric shape, either abstractly, as in idealizations studied by geometers, or concretely in physical space. It does not include metaphors like "inner circle" or "circular reasoning" in which the word does not refer literally to the geometric shape.
This is a list of recurring cycles. See also ... Business cycle – Inflation / Recession – Monetary policy – Virtuous circle and vicious circle – Kitchin cycle ...
The curve that has a catacaustic forming a circle. Approximates the Archimedean spiral. [11] Atomic spiral: 2002 = This spiral has two asymptotes; one is the circle of radius 1 and the other is the line = [12] Galactic spiral: 2019
A circle bounds a region of the plane called a disc. The circle has been known since before the beginning of recorded history. Natural circles are common, such as the full moon or a slice of round fruit. The circle is the basis for the wheel, which, with related inventions such as gears, makes much of modern
Some suspected the circles resulted from a “huge gas bubble” that emerged from the lake bed, while others wondered if something mysterious caused the surface of a frozen lake to ripple.
Patterns in nature are visible regularities of form found in the natural world. These patterns recur in different contexts and can sometimes be modelled mathematically . Natural patterns include symmetries , trees , spirals , meanders , waves , foams , tessellations , cracks and stripes. [ 1 ]
For more information, see the article about circle. Articles relating to circles , a shape consisting of all points in a plane that are at a given distance from a given point, the centre . Equivalently, it is the curve traced out by a point that moves in a plane so that its distance from a given point is constant .
The slightly smaller circle, named the “Nonakado” circle, is 42 meters in diameter and is located around 90 meters away, separated from the “Manza” circle by Akita Prefectural Route 66. Each circle is made from rounded river stones brought from another river approximately 7 kilometers away.