For a long period of time, scientists have failed to explain the origin of the “fairy circles” in Australia and Africa. At first, the unusual phenomenon was associated with termites, and then the mystery was solved thanks to drones and Turing's theory.
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Fairy Circles are oval-shaped patches of soil devoid of vegetation that appear among the grass. The peoples even associated this phenomenon with the action of supernatural forces. Therefore, the name “witch's circles or rings” appeared. Scientists decided to understand the causes of the phenomenon, armed with unmanned aerial vehicles and video cameras. The researchers traveled to the Australian outback, where bare patches of grass can often be found. The experts used the theory of “reaction and diffusion” as a theory.
According to Turing's theory, when distortions occur in homogeneous systems, stable behavior patterns are developed. This model is used to explain recurring patterns. Thanks to theoretical training and equipment, scientists realized that when the air temperature rises, a crust of clay forms on the soil. After moisture gets on it, grass appears there. Thanks to this, the desertification process is suspended. Therefore, “fairy circles” are formed on warm continents and in hot countries.