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A Vavilov Center (of Diversity) is a region of the world first indicated by Nikolai Vavilov to be an original center for the domestication of plants. [3] For crop plants, Nikolai Vavilov identified differing numbers of centers: three in 1924, five in 1926, six in 1929, seven in 1931, eight in 1935 and reduced to seven again in 1940. [4] [5]
Nikolai Ivanovich Vavilov ForMemRS, [3] HFRSE (Russian: Никола́й Ива́нович Вави́лов, IPA: [nʲɪkɐˈlaj ɪˈvanəvʲɪtɕ vɐˈvʲiləf] ⓘ; 25 November [O.S. 13 November] 1887 – 26 January 1943) was a Russian and Soviet agronomist, botanist and geneticist who identified the centers of origin of cultivated plants.
The concept of center of gravity or weight was studied extensively by the ancient Greek mathematician, physicist, and engineer Archimedes of Syracuse.He worked with simplified assumptions about gravity that amount to a uniform field, thus arriving at the mathematical properties of what we now call the center of mass.
There are multiple interpretations about the origin of the concept of the axis mundi. One psychological and sociological interpretation suggests that the symbol originates in a natural and universal psychological perception – i.e., that the particular spot that one occupies stands at "the center of the world".
The center of the Universe is a concept that lacks a coherent definition in modern astronomy; according to standard cosmological theories on the shape of the universe, it has no distinct spatial center. Historically, different people have suggested various locations as the center of the Universe.
Center of gravity (COG) is a military concept referring to the primary source of strength, balance, or stability necessary for a force to maintain combat operations.Centers of gravity can be physical, moral, or both, and exist for all belligerents at all tactical, strategic, and operational levels of war simultaneously. [1]
The Auburn Performing Arts Center, Julie and Hal Moore Center for Excellence at Auburn High School (Alabama) is focused on performing arts.. A center of excellence (COE or CoE), also called an excellence center, is a team, a shared facility or an entity that provides leadership, best practices, research, support, or training for a focus area.
The center of gravity, as the name indicates, is a notion that arose in mechanics, most likely in connection with building activities. It is uncertain when the idea first appeared, as the concept likely occurred to many people individually with minor differences.