Mathematical progression of avian egg shape with associated area and volume determinations.
Ann N Y Acad Sci
; 1513(1): 65-78, 2022 07.
Article
em En
| MEDLINE
| ID: mdl-35333376
ABSTRACT
Development of nondestructive techniques for estimating egg parameters requires a comprehensive approach based on mathematical theory. Basic properties used to solve theoretical and applied problems in this respect are volume (V) and surface area (S). There are respective formulae for calculating V and S of spherical, ellipsoidal, and ovoid eggs in classical egg geometry; however, the mathematical description and calculation of these parameters for pyriform eggs have remained elusive. In the present study, we derived the appropriate formulae and established that this would be not only applicable and valid for the category of pyriform eggs, but also universal and explicit for all other naturally occurring avian egg shapes. Thus, we have demonstrated "mathematical progression" of this natural object, considering the egg as a sequence of geometric figures that transform from one to another in the following sequence of shapes sphere â ellipsoid â ovoid (whose profile corresponds to Hügelschäffer's model) â pyriform ovoid.
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1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Matemática
Tipo de estudo:
Risk_factors_studies
Limite:
Humans
Idioma:
En
Revista:
Ann N Y Acad Sci
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
Ucrânia