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S.L. Arsenjev

Physical-Technical Group

Dobroljubova Street, 2, 29, Pavlograd Town, Dnjepropetrovsk region, 51400 Ukraine

It is adduced series of examples, illustrated the form building properties of a circumference evolvent in some engineering fields, including the flow elements and systems with real compressible fluid and incompressible air-water foamaerosol mixture, a solid stressed state and also in some natural phenomena, including meteorology, biology, … elements of architecture, wind instruments.

PACS: 47.40.+ x; 47.60.+ i; 47.85.- g; 82.70. Rr; 92.60.- e

The conic sections in engineering and the Nature’s phenomena Part 4

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