Archimedes
,
Archimedis De iis qvae vehvntvr in aqva libri dvo
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DE CENTRO GRAVIT. SOLID.
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ſphæræ uel ſphæroidis, quæ dimidia maior eſt, cẽ
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trum grauitatis in axe conſiſtere.</
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qualibet maio
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ri portiõe, quo
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niã totius ſphæ
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ræ, uel ſphæroi
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dis grauitatis
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centrum eſt in
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axe; </
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& </
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trum portio-
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nis minoris:
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</
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<
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xml:space
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ſario conſiſtet.</
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gularem baſim habẽtis gra
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uitatis centrum eſt in pun-
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cto, in quo ipſius axes con-
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ueniunt.</
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">Sit pyramis, cuius baſis trian
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gulum a b c, axis d e: </
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guli b d c grauitatis centrum f:
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</
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">& </
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dem pyramidis ex tertia diffini-
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tione huius. </
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axe d e; </
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