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

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      <text>
        <body>
          <chap>
            <p type="main">
              <s id="s.000434">
                <pb pagenum="90" xlink:href="010/01/098.jpg"/>
                <arrow.to.target n="marg102"/>
                <lb/>
              AB, & ſic denuò quouſque repetitis vibrationibus
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              ſenſim languendo, tandèm quieſcat in ſitu naturali
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              EF. </s>
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            <p type="margin">
              <s id="s.000435">
                <margin.target id="marg102"/>
              Cap. 4. poſi­
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              tiuam leui­
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              tatem noņ
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              dari.</s>
            </p>
            <figure id="id.010.01.098.1.jpg" xlink:href="010/01/098/1.jpg" number="39"/>
            <p type="main">
              <s id="s.000436">Pari modo ſumpto
                <expan abbr="fune-pẽ-dulo">fune-pen­
                  <lb/>
                dulo</expan>
              AB quod moueri poſſit
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              circa ſuum centrum firmum A,
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              remota pila plumbea. </s>
              <s id="s.000437">B à ſitu
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              ſuo naturali, ſeu perpendicu­
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              lari ad horizontem, perducta­
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              que ad ſitum eleuatum C, illa planè vt grauis excur­
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              ret deſcendendo arcum CB, & vniuerſus is motus na­
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              turalis erit, vtpotè dependens ab impetu grauitatis
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              intrinſeco, non tamen in infimo ſitu B pila perſiſtet
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              poſtquam ibidem perducta eſt, ſed vlteriùs excur­
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              ret ferè æquali ſpatio priori vltrà perpendiculum vſ­
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              que ad ſitum D, aſcendendo nimirùm ab infimo ſitu
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              B per integrum arcum BD, & quia motus ille qui gi­
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              gnitur à principio intrinſeco, & naturali non poteſt
                <lb/>
              eſſe non naturalis, cùmque aſcenſus pilæ vltra cen­
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              trum terræ, & deſcenſus cylindri EF infra aquæ li­
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              bellam poſt caſum, & aſcenſus pilæ plumbeæ per ar­
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              cum BD pendeat, creeturque ab illa naturali virtu­
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              te grauitatis nempè eiuſdem corporis deſcendentis
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              quatenùs deſcendit: nulla enim alia cauſa extrinſe­
                <lb/>
              ca ſuperueniens excogitari poteſt, quæ violentiam̨
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              inſerat, & ſursùm impellat prædictum graue, quàm
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              impetus acquiſitus, & conceptus in ipſo caſu natura­
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              litèr facto productoque à principio intrinſeco graui­
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              tatis eius, qui procùl dubio impetus à naturali prin-</s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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