Descartes, René, Renati Des-Cartes principia philosophiae

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      <text>
        <body>
          <chap>
            <pb pagenum="133"/>
            <p type="margin">
              <s>
                <margin.target id="marg872"/>
              LXXVII.
                <lb/>
              Quomodo Solis lumen
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              non modò verſus Ecli­
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              pticam, ſed etiam ver­
                <lb/>
              ſus polos ſe diſfundat. </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg873"/>
              25</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg874"/>
              30</s>
            </p>
            <figure id="fig28" number="28"/>
            <p type="main">
              <s>
                <arrow.to.target n="marg875"/>
                <lb/>
              Jamque id ſupra oſtensum eſt a de globulis contentis
                <lb/>
              in triangulo, cujuſ baſis erat ſemicirculus eclipticae
                <lb/>
              ſolaris, quamvis nondum ulla actio primi elementi
                <lb/>
              ſpectaretur; ſed nun hoch ipsum de iiſdem, ſi
                <lb/>
                <arrow.to.target n="marg876"/>
              mulque etiam de reliquis in toto cono contentis,
                <lb/>
              hujus primi elementi ope clariùs patebit. </s>
              <s>Ea enim
                <lb/>
              ejus pars, quae corpus Solis componit tam globulos
                <lb/>
              ſecundi elementi qui ſunt verſus eclipticam
                <emph type="italics"/>
              e
                <emph.end type="italics"/>
              , quàm
                <lb/>
              etiam eos qui ſunt verſus polos
                <emph type="italics"/>
              d, ſ
                <emph.end type="italics"/>
              , ac denique
                <lb/>
                <arrow.to.target n="marg877"/>
              omnes qui ſunt in cono
                <emph type="italics"/>
              dHſ
                <emph.end type="italics"/>
              , verſus H propellit;
                <lb/>
              neque enim ipſa majori vi movetur verſus
                <emph type="italics"/>
              e
                <emph.end type="italics"/>
              , quàm
                <lb/>
              verſus
                <emph type="italics"/>
              d
                <emph.end type="italics"/>
              &
                <emph type="italics"/>
              ſ
                <emph.end type="italics"/>
              , aliaſque partes intermedias: illa verò
                <lb/>
              quae jam ſupponitur eſſe in H, tendit verſus C, unde
                <lb/>
              per K & L verſus S tanquam in circulum regrediatur.
                <lb/>
                <arrow.to.target n="marg878"/>
              Ideoque non impedit ne globuli iſti ad H accedant, &
                <lb/>
              eorum acceſſu ſpatium quod priùs ibi erat, corpori
                <lb/>
              Solis accreſcat, impleaturque materià primi elementi,
                <lb/>
              à centris K, L) & ſimilibus eò confluente. </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg875"/>
              LXXVIII.
                <lb/>
              Quomodo verſus Ecli­
                <lb/>
              pticam ſe diffundat.</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg876"/>
              5</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg877"/>
              10</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg878"/>
              15</s>
            </p>
            <p type="main">
              <s>
                <arrow.to.target n="marg879"/>
                <lb/>
              Quin ipſa potiùs ad hoc juvat; cùm enim omnis
                <lb/>
                <arrow.to.target n="marg880"/>
              motus tendat in lineam rectam, materia maximè
                <lb/>
              agitata in H exiſtens, magis propendet ad inde egre­
                <lb/>
              diendum quàm ad remanendum: quò enim ſpatium
                <lb/>
              in quo verſatur eſt anguſtius, eò magis inflectere
                <lb/>
              cogitur ſuos otus. </s>
              <s>Et idcirco minim mirum eſſe
                <lb/>
                <arrow.to.target n="marg881"/>
              debet, quòd ſaepe, ad motum alicujus minutiſſimi cor­
                <lb/>
              poris, alia corpora, per quantumvis magna ſpatia
                <lb/>
              diffuſa, ſimul moveantur; nec proinde etiam, cur non
                <lb/>
              tantùm Solis, ſed & Stellarum quam-maxim remota­
                <lb/>
              rum, actio ad terram uſque in minimo temporis mo­
                <lb/>
                <arrow.to.target n="marg882"/>
              mento perveniat </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>