Borro, Girolamo, De motu gravium et levium, 1575

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      <text>
        <body>
          <chap>
            <subchap1>
              <pb pagenum="15" xlink:href="011/01/035.jpg"/>
              <p type="main">
                <s id="s.000231">
                  <emph type="italics"/>
                Huic alteram rationem à motu, & quiete petitam addi­
                  <lb/>
                mus; quæ tertio libro de cælo particula duodeuigeſima, & vn­
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                deuigeſima, & deinceps ab Aristotele literis conſignatur,
                  <lb/>
                ea autem est.
                  <emph.end type="italics"/>
                </s>
              </p>
              <p type="main">
                <s id="s.000232">
                  <emph type="italics"/>
                Cum omnia naturalia corpora moueri nemo ſit, qui inficias
                  <lb/>
                ire audeat; propterea quod nullum eſſe naturale corpus, quod
                  <lb/>
                non moueatur, tum ſenſibus, vel etiam ipſis comprehendimus,
                  <lb/>
                tum ratione naturæ, quæ in eis eſt principium motus; vt dixi­
                  <lb/>
                mus; naturalium corporum motum conſtitutum in diſ quiſitio
                  <lb/>
                nem accerſimus, & quærimus naturalis ne, an violentus ſit
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                motus, quo moueantur: ſi violentus ſit motus, quo in aliquem
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                locum contra naturam truduntur, ergo motus naturalis illi
                  <lb/>
                contrarius reperiri neceſſe eſt; nam violentum illud dicitur,
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                quod contra naturam fit: vt ignis qui contra naturam deor­
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                ſum præceps ruit, motu priori contrario naturaliter in ſubli­
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                me nitetur: ergo in elementis naturalis inest motus.
                  <emph.end type="italics"/>
                </s>
              </p>
              <p type="main">
                <s id="s.000233">
                  <emph type="italics"/>
                Nec non ab ipſamet quiete argumentum facilè petimus;
                  <lb/>
                quo naturalem in corporibus ſimplicibus elementorum ineſſe
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                motum confirmemus.
                  <emph.end type="italics"/>
                </s>
              </p>
              <p type="main">
                <s id="s.000234">
                  <emph type="italics"/>
                Si naturalia elementorum corpora in aliquo loco
                  <expan abbr="quieſcũt">quieſcunt</expan>
                ;
                  <lb/>
                quærimus, vtrum ne violentia, an vero natura ibi maneant:
                  <lb/>
                ſi violentia; ergo ad eum locum violentia feruntur, quemadmo
                  <lb/>
                dum in eo loco natura conſiſtunt, ad quem natura tendunt: at
                  <lb/>
                notum eſt ita, vt nulli ſua domus nota magis, terram in medio
                  <lb/>
                natura quieſcere; ergo terram ad medium natura ferri ne­
                  <lb/>
                ceſſe eſt, ergo motus naturalis est in elementorum corpore na
                  <lb/>
                turali. </s>
                <s id="s.000235">Quod ſi violentia in medio terra maneat; ergo aliquid
                  <lb/>
                eſſe neceſſe eſt, quod terram ſurſum euolare prohibeat. </s>
                <s id="s.000236">Tum
                  <lb/>
                quærimus, an id, quod prohibet,
                  <expan abbr="immotũ">immotun</expan>
                id muneris abſoluat;
                  <lb/>
                an dum mouetur, atque vtrumque, vel naturaliter, vel violen-
                  <emph.end type="italics"/>
                </s>
              </p>
            </subchap1>
          </chap>
        </body>
      </text>
    </archimedes>