Guevara, Giovanni di, In Aristotelis mechanicas commentarii, 1627

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      <text>
        <body>
          <chap id="N10019">
            <p id="N11341" type="main">
              <s id="N1134D">
                <pb pagenum="37" xlink:href="005/01/045.jpg"/>
                <emph type="italics"/>
              Quamobrem manifeſtum, quod inde mutatum eſt. </s>
              <s id="N11361">Quaprop­
                <lb/>
              ter (vt dictum eſt prius) non eſt inconueniens, ipſum miraculo­
                <lb/>
              rum omnium eſſe principium.
                <emph.end type="italics"/>
              </s>
            </p>
            <p id="N1136A" type="main">
              <s id="N1136C">
                <emph type="italics"/>
              Ea igitur, quæ circa libram fiunt, ad circulum referuntur:
                <lb/>
              “quæ vero circa vectem, ad ipſam libram; alia autem ferè om-
                <emph.end type="italics"/>
                <arrow.to.target n="marg13"/>
                <lb/>
                <emph type="italics"/>
              nia, quæ circa Menbanicas ſunt motiones, ad vectem. </s>
              <s id="N1137C">Prae­
                <lb/>
              tereà etiam quoniam vnica exiſtente, quæ ex centro eſt linea,
                <lb/>
              nullum aliud alij, quæ in illa ſunt, punctorum æqua velocitate
                <lb/>
              feratur; ſed citius ſemper, quod à manente termino eſt remo­
                <lb/>
              tius,
                <expan abbr="pleraq.">pleraque</expan>
              miraculorum accidunt in circuli motionibus: de
                <lb/>
              quibus in ijs, quæ poſthac adducentur, quæſtionibus erit ma­
                <lb/>
              nifeſtam.”
                <emph.end type="italics"/>
              </s>
            </p>
            <p id="N11391" type="margin">
              <s id="N11393">
                <margin.target id="marg13"/>
              Verba re­
                <lb/>
              ſecanda.</s>
            </p>
            <p id="N1139A" type="main">
              <s id="N1139C">
                <emph type="italics"/>
              Quoniam autem secundum contrarias ſimul motiones mo­
                <lb/>
              uetur circulus; & alienum quidem diametri extremum, vbi A,
                <lb/>
              in ante mouetur, alterum verò vbi B, ad retro; efficiunt non­
                <lb/>
              nulli, vt ab vnica motione multi contrario ſimul moueantur
                <lb/>
              circuli; quemadmodum ſunt illi, quos in locis proponunt ſacris,
                <lb/>
              æneos, & ferreos fabricantes orbiculos. </s>
              <s id="N113AB">Si enim AB, circu­
                <lb/>
              lum alier contingerit, circulus in quo CD, mota circuli, in quo
                <lb/>
              AB, diametro in ante, mouebitur CD, ad retro diametro cir­
                <lb/>
              culi, vbi eſt A, circà idem mota, In contrarium igitur moue­
                <lb/>
              bitur circulus vbi CD, ad illum, vbi AB, El rurſus ipſe con­
                <lb/>
              tiguum vbi EF, in contrarium ſibi ipſi mouebitur propter ean­
                <lb/>
              dem cauſam. </s>
              <s id="N113BA">Eodem etiam modo ſi plures fuerint, idem
                <lb/>
              facient, vno ſolo commoto. </s>
              <s id="N113BF">Hanc lgitur in circulo exiſtentem
                <lb/>
              animaduertens naturam Architecti, inſtrumentum fabricant,
                <lb/>
              celantes principium, vt machinæ ſolum manifeſtum ſit illud,
                <lb/>
              quod admirationem præſtat, cauſa verò lateat.
                <emph.end type="italics"/>
              </s>
            </p>
            <p id="N113CA" type="head">
              <s id="N113CC">COMMENTARIVS.</s>
            </p>
            <p id="N113D0" type="main">
              <s id="N113D2">Tertio illud quoque admiratione dignum ſeſe offert in
                <lb/>
              circulo, quod, inquit Ariſtoteles, contrarijs ſimul fe­
                <lb/>
              ratur motionibus, antrorſum videlicet, ac retrorſum,
                <lb/>
              ſurſum, ac deorſum. </s>
              <s id="N113DB">Dum enim pars circuli ſuperior deſcen­
                <lb/>
              dit, ac mouetur antrorſum, v. g. ad dexteram, altera pars illi </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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