Newton, Isaac, Philosophia naturalis principia mathematica, 1713

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    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s>
                <pb xlink:href="039/01/020.jpg"/>
              ridebitur qui finget Elaterem, & ex Hypotheſi ſic præpropere con­
                <lb/>
              ficta motum Indicis explicare ſuſcipiet: oportuit enim internam
                <lb/>
              Machinæ fabricam penitius perſcrutari, ut ita motus propoſiti prin­
                <lb/>
              cipium verum exploratum habere poſſet. </s>
              <s>Idem vel non abſimile
                <lb/>
              feretur judicium de Philoſophis illis, qui materia quadam ſubti­
                <lb/>
              liſſima Cælos eſſe repletos, hanc autem in Vortices indeſinenter
                <lb/>
              agi voluerunt. </s>
              <s>Nam ſi Phænomenis vel accuratiſſime ſatisfacere
                <lb/>
              poſſent ex Hypotheſibus ſuis; veram tamen Philoſophiam tradi­
                <lb/>
              diſſe, & veras cauſas motuum cæleſtium inveniſſe nondum di­
                <lb/>
              cendi ſunt; niſi vel has revera exiſtere, vel ſaltem alias non ex­
                <lb/>
              iſtere demonſtraverint. </s>
              <s>Igitur ſi oſtenſum fuerit, univerſorum
                <lb/>
              corporum Attractionem habere verum locum in rerum natura;
                <lb/>
              quinetiam oſtenſum fuerit, qua ratione motus omnes cæleſtes ab­
                <lb/>
              inde ſolutionem recipiant; vana fuerit & merito deridenda objectio,
                <lb/>
              ſi quis dixerit eoſdem motus per Vortices explicari debere, etiamſi
                <lb/>
              id fieri poſſe vel maxime conceſſerimus. </s>
              <s>Non autem concedimus:
                <lb/>
              Nequeunt enim ullo pacto Phænomena per Vortices explicari;
                <lb/>
              quod ab Auctore noſtro abunde quidem & clariſſimis rationibus
                <lb/>
              evincitur; ut ſomniis plus æquo indulgeant oporteat, qui inep­
                <lb/>
              tiſſimo figmento reſarciendo, noviſque porro commentis ornando
                <lb/>
              infelicem operam addicunt. </s>
            </p>
            <p type="main">
              <s>Si corpora Planetarum & Cometarum circa Solem deferantur
                <lb/>
              a Vorticibus; oportet corpora delata & Vorticum partes proxime
                <lb/>
              ambientes eadem velocitate eademque curſus determinatione mo­
                <lb/>
              veri, & eandem habere denſitatem vel eandem Vim inertiæ pro
                <lb/>
              mole materiæ. </s>
              <s>Conſtat vero Planetas & Cometas, dum verſan­
                <lb/>
              tur in iiſdem regionibus Cælorum, velocitatibus variis variaque
                <lb/>
              curſus determinatione moveri. </s>
              <s>Neceſſario itaque ſequitur, ut
                <lb/>
              Fluidi cæleſtis partes illæ, quæ ſunt ad eaſdem diſtantias a Sole,
                <lb/>
              revolvantur eodem tempore in plagas diverſas cum diverſis ve­
                <lb/>
              locitatibus: etenim alia opus erit directione & velocitate, ut tran­
                <lb/>
              ſire poſſint Planetæ; alia, ut tranſire poſſint Cometæ. </s>
              <s>Quod cum
                <lb/>
              explicari nequeat; vel fatendum erit, univerſa corpora cæleſtia
                <lb/>
              non deferri a materia Vorticis; vel dicendum erit, eorundem mo­
                <lb/>
              tus repetendos eſle non ab uno eodemque Vortice, ſed a pluribus
                <lb/>
              qui ab invicem diverſi ſint, idemque ſpatium Soli circumjectum
                <lb/>
              pervadant. </s>
            </p>
            <p type="main">
              <s>Si plures Vortices in eodem ſpatio contineri, & ſeſe mutuo pe­
                <lb/>
              netrare, motibuſQ.E.D.verſis revolvi ponantur; quoniam hi mo­
                <lb/>
              tus debent eſſe conformes delatorum corporum motibus, qui </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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