Valerio, Luca, De centro gravitatis solidorvm libri tres

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            <pb xlink:href="043/01/246.jpg" pagenum="67"/>
            <p type="head">
              <s>
                <emph type="italics"/>
              PROPOSITIO XXXIIII.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="main">
              <s>Omnis portionis ſphæræ, vel ſphæroidis ab­
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              ſciſſæ duobusplanis parallelis, neutro per cen­
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              trum acto, nec centrum intercipientibus, centrum
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              grauitatis eſt in axe, primum bifariam ſecto: de­
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              inde ſecundum centrum grauitatis reliqui dem­
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              pta portione ex cylindro, vel portione cylindrica,
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              abſciſſo, vel abſciſſa vnà cum portione à cylin­
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              dro, vel portione cylindrica ſphæræ, vel ſphæroi­
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              di circa eius axem axi portionis congruentem cir­
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              cumſcripta; in eo puncto, in quo dimidius axis
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              portionis maiorem baſim attingens ſic diuiditur,
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              vt pars prima & ſecunda ſectione terminata ſit ad
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              eam, quæ prima, & poſtrema ſectione terminatur,
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              vt duo rectangula, alterum contentum duobus
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              ſphæræ, vel ſphæroidis axis axi portionis
                <expan abbr="cõgruen">congruen</expan>
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              tis ijs ſegmentis, quæ fiunt à centro minoris baſis
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              portionis: alterum axe portionis, & ſegmento,
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              quod ſphæræ, vel ſphæroidis, & maioris baſis por­
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              tionis centra iungit, vnà cum duabus tertiis qua­
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              drati axis portionis, ad ſphæræ vel ſphæroidis di­
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              midij axis quadratum. </s>
            </p>
            <p type="main">
              <s>Sit ſphæræ, vel ſphæroidis, cuius centrum E portio
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              ABCD, abſciſſa duobus planis parallelis, neutro per E
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              tranſeunte, nec E intercipientibus: portionis autem axis
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              ſit FS: maior baſis circulus, vel ellipſis, cuius diame­</s>
            </p>
          </chap>
        </body>
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