Valerio, Luca, De centro gravitatis solidorvm libri tres

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              æquale erit cono KBL. </s>
              <s>Rurſus quia eſt vt EB ad BD, ita
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              quadratum GD ad quadratum DK, hoc eſt circulus cir­
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              ca GH ad circulum circa KL, hoc eſt conus GBH ſi
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              deſcribatur ad conum KBL: ſed vt FB ad BE ita eſt co­
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              noides GBH ad conum GBH; ex æquali igitur erit vt
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              FB ad BD, ita conoides GBH ad conum KBL, hoc
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              eſt ad ſolidum AGBHC. </s>
              <s>Manifeſtum eſt igitur
                <expan abbr="propoſitũ">propoſitum</expan>
              . </s>
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              COROLLARIVM.
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              <s>Ex huius Theorematis demonſtratione manife
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              ſtum eſt, ijſdem poſitis cylindros deficientes, ex
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              quibus conſtat exceſſus, quo figura conoidi hyper
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              bolico circumſcripta ſuperat circumſcriptam co­
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              noidi parabolico, ita ſe habere, vt quorumlibet
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              trium inter ſe proximorum minor proportio ſit
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              minimi ad medium, quam medij ad maximum:
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              æquales enim ſunt ſinguli ſingulis cylindris, ex
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              quibus conſtat figura cono BKL circumſcripta,
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              qui ſunt inter eadem plana parallela. </s>
              <s>Quod ſi
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              ita eſt, ſimul illud manifeſtum erit, & ex hoc, &
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              ex ijs, quæ in ſecundo libro demonſtrauimus; præ­
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              dictum exceſſum ex tot cylindris deficientibus
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              eiuſdem altitudinis, quos diximus componi poſſe,
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              vt ipſius centrum grauitatis in axe BD diſtet à
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              centro grauitatis coni KBL, hoc eſt à puncto in
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              quo axis BD ſic diuiditur, vt pars, quæ ad ver­
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              ticem ſit reliquæ tripla, ea diſtantia, quæ minor
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              ſit quantacum que longitudine propoſita. </s>
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