Borelli, Giovanni Alfonso, De motionibus naturalibus a gravitate pendentibus, 1670

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            <p type="main">
              <s id="s.000437">
                <pb pagenum="91" xlink:href="010/01/099.jpg"/>
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              cipio pendens naturalis, & intrinſecus quoque erit,
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              igitur etiam illa operatio aſcenſus erit naturalis qua­
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              tenùs pendet creaturque à principio intrinſeco, iņ
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              eo enim ſolummodò caſu violenta
                <expan abbr="cẽſeri">cenſeri</expan>
              poſſet
                <expan abbr="quã-do">quan­
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                do</expan>
              à peregrino, &
                <expan abbr="aduẽtitio">aduentitio</expan>
              principio procrearetur. </s>
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              Cap. 4. poſi­
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              tiuam leui­
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              tatem noņ
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              dari.</s>
            </p>
            <p type="main">
              <s id="s.000439">Contra hoc ratiocinium inſurgit inſignis Peripa­
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              teticus, & ait, quod ſubſequens aſcenſus vltra cen­
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              trum terræ, vel vltra perpendiculum per arcum BD
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              non pendet, nec procreatur à grauitate eiuſdem cor­
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              poris, ſed ab impetu concepto per motum deſcenſus,
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              qui impetus, inquit ille, res eſt, toto cœlo diuerſa à
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              grauitate, imò prædictus impetus contra grauitatem
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              luctatur. </s>
            </p>
            <p type="margin">
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              Obiectiones
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              recentioris
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              authoris af­
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              feruntur.</s>
            </p>
            <p type="main">
              <s id="s.000441">Patet ergò concedere aduerſarium pilæ aſcenſum
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              poſt excurſum vltra centrum, vel vltra perpendicu­
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              lum effici, ac produci à virtute impetus impreſſi, qui
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              nimirùm immediata cauſa, & principium eſt prædi­
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              cti aſcenſus, ſeù operationis, quæ nomine leuitatis
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              inſignitur. </s>
              <s id="s.000442">At quia præter immediatam cauſam illius
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              aſcenſus, ſcilicèt præter impetum, adnotari præte­
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              rea debet cauſa productrix prædicti impetus, quæ
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              eſt grauitas naturalis, & intrinſeca eiuſdem corpo­
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              ris, ergo hæc erit cauſa ſaltèm mediata illius poſtre­
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              mi aſcenſus, & hìc noto quod aduerſarius non negat,
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              nec affirmat grauitatem fuiſſe cauſam, & principium
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              productiuum prædicti impetus, ſed tantummodò ait
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              valdè differre grauitatem ab impetu, imò naturas
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              contrarias, & ſe mutuo deſtructiuas habere, quia ni­
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              mirùm non alia de cauſa ceſſat
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              motus
                <expan abbr="aſcẽ-">aſcen-</expan>
              </s>
            </p>
          </chap>
        </body>
      </text>
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