Archimedes
,
Archimedis De iis qvae vehvntvr in aqva libri dvo
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DE CENTRO GRAVIT. SOLID.
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eſſe pun ctum g. </
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uitatis fit idem, quodipſius ſphæræ centrum.</
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<
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<
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xml:space
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ræ centrum m. </
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decahedri. </
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<
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cim baſibus ſolidi a f: </
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<
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xml:space
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">iuncta a m producatur ad ſphæræ
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ſuperficiem. </
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<
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<
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ligitur ex decima ſeptima propoſitione tertiidecimilibri
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elementorum. </
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<
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trum itidem lineæ ducantur ad ſuperficiem ſphæræ in pun
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cta g h k l; </
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<
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baſi opponitur. </
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<
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f g h K l plana ſphæram ſecantia, quæ facient ſectiones cir-
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culos æquales inter ſe ſe poſtea ducantur ex centro ſphæræ
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m perpen diculares ad pla-
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na dictorum circulorũ; </
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circulum quidem a b c d e
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perpendicularis m n: </
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<
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circulum f g h K l ipſa m o,
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mæ ſphæ
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ricorum
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Theod.</
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erunt puncta n o circulorũ
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centra: </
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<
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ter ſe æquales: </
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li æquales ſint. </
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">6. primi
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phærico
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rum.</
note
>
do, quo ſupra, demonſtrabi
<
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mus lineas m n, m o in unã
<
lb
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atque eandem lineam con-
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uenire. </
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<
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ſtat ex prima huius & </
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</
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<
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xml:space
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ponatur a b c d e m pyramidis grauitatis centrum p: </
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<
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ramidis f g h
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l m ipſum q centrum. </
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<
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les, & </
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<
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ex ipſis pyramidibus conſtat. </
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rumlibet pyramidum, quæ è regione opponuntur, </
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