Descartes, René, Renati Des-Cartes principia philosophiae

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        <body>
          <chap>
            <p type="main">
              <s>
                <pb pagenum="75"/>
              tibus; quòdque perexigua vis, illis adjuncta, ſufficiat
                <lb/>
              ad harum determinationem mutandam; quòdque,
                <lb/>
              quamvis nullae fortè deſcribant tales circulos, quales
                <lb/>
              hîc repraeſentantur
                <emph type="italics"/>
              a e i o
                <emph.end type="italics"/>
              &
                <emph type="italics"/>
              ouya
                <emph.end type="italics"/>
              , haud dubi tamen
                <lb/>
                <arrow.to.target n="marg544"/>
              omnes circulariter, & aliquibus modis huic aequipol­
                <lb/>
              lentibus moveantur. </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg536"/>
              LVII.
                <lb/>
              Ejuſdem rei demon­
                <lb/>
              ſtratio. </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg537"/>
              20</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg538"/>
              25</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg539"/>
              5</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg540"/>
              10</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg541"/>
              15</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg542"/>
              20</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg543"/>
              25</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg544"/>
              5</s>
            </p>
            <figure id="fig6" number="6"/>
            <p type="main">
              <s>
                <arrow.to.target n="marg545"/>
                <lb/>
              Ita ergo mutatâ determinatione particularum fluidi,
                <lb/>
              quae impediebant ne corpus B moveretur verſus C
                <lb/>
              hoc corpus B omnino incipiet moveri, & quidem eâ­
                <lb/>
                <arrow.to.target n="marg546"/>
              dem cum celeritate, quà vis à fluido diverſa illud pel­
                <lb/>
              lit; ſi ſupponamus in iſlo fluido nullas eſſe particulas,
                <lb/>
              quae non celeriùs, vel ſaltem aequè celeriter movean­
                <lb/>
              tur. </s>
              <s>Nam, ſi quae tardiús agantur, quatenus ex illis
                <lb/>
              conſtat rationem fluidi non habet, neque tunc ſufficit
                <lb/>
                <arrow.to.target n="marg547"/>
              minima quaeque vis ad corpus durum in hoc fluido
                <lb/>
              exiſtens movendum; ſed tanta requiritur, ut ſuperet
                <lb/>
              reſiſtentiam quae oritur ab iſtarum fluidi particularum
                <lb/>
              tarditate. </s>
              <s>Ac ideò ſaepe videmus ae
                <gap/>
              rem, aquam & alia
                <lb/>
              fluida, multúm reſiſtere corporibus, quae in ipſis valde
                <lb/>
                <arrow.to.target n="marg548"/>
              celeriter aguntur, iiſdemque ſine ullâ difficultate ce­
                <lb/>
              dere, cùm lentiús procedunt. </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg545"/>
              LVIII.
                <lb/>
              Si quae fluidi particulae
                <lb/>
              tardiús moveantur,
                <lb/>
              quàm corpus durum
                <lb/>
              in eo exiſtens, illud
                <lb/>
              hac in parte fluidi
                <lb/>
              rationem non habere. </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg546"/>
              10</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg547"/>
              15</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg548"/>
              20</s>
            </p>
            <p type="main">
              <s>
                <arrow.to.target n="marg549"/>
                <lb/>
              Cúm autem corpus B ſic movetur verſus C, non pu­
                <lb/>
              tandum eſt, illud accipere ſuum motum à ſolâ vi exter­
                <lb/>
              nâ ipſum impellente, ſed maximà ex parte à fluidi par­
                <lb/>
                <arrow.to.target n="marg550"/>
              ticulis; ita ſcilicet, ut eá quer componunt circulos
                <lb/>
                <emph type="italics"/>
              aeio
                <emph.end type="italics"/>
              &
                <emph type="italics"/>
              ayuo
                <emph.end type="italics"/>
              , tantum amittant de ſuo motu, quantum
                <lb/>
              acquirent ea particulit corporis duri B quae ſunt inter
                <lb/>
                <emph type="italics"/>
              o
                <emph.end type="italics"/>
              &
                <emph type="italics"/>
              a
                <emph.end type="italics"/>
              : quippe quae jam facient partem motuum circu­
                <lb/>
              larium
                <emph type="italics"/>
              aeioa
                <emph.end type="italics"/>
              &
                <emph type="italics"/>
              ayuoa
                <emph.end type="italics"/>
              : quamvis, prout ulterius proce­
                <lb/>
                <arrow.to.target n="marg551"/>
              dent verſus C, novis ſemper fluidi particulis jungantur. </s>
            </p>
          </chap>
        </body>
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