Borro, Girolamo, De motu gravium et levium, 1575

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        <body>
          <chap>
            <subchap1>
              <p type="main">
                <s id="s.000349">
                  <pb pagenum="41" xlink:href="011/01/061.jpg"/>
                  <emph type="italics"/>
                ſunt, ſed ad ſuperiora elementa comparata grauia dicuntur,
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                ad inferior a leuia cenſentur. </s>
                <s id="s.000350">Has grauium, & leuium defini­
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                tiones Ariſtoteles edidit tum primo cæli,
                  <expan abbr="tũ">tum</expan>
                quarto eiuſdem.
                  <emph.end type="italics"/>
                </s>
              </p>
            </subchap1>
            <subchap1>
              <p type="head">
                <s id="s.000351">Platonis, & cæterorum error in definitione gra­
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                uium, & leuium ab Ariſtotele demon­
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                ſtratur. </s>
                <s id="s.000352">Cap. XXIIII.</s>
              </p>
              <p type="main">
                <s id="s.000353">I
                  <emph type="italics"/>
                n his definitionibus Ariſtoteles Platonem, & cæteros
                  <lb/>
                hallucinatos eſſe putauit: quia, cum ad huius rei tractatio­
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                nem acceſſerunt, quid abſolutè graue, & quid abſolutè le­
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                ue ſit, prorſus non expreſſerunt; ſed de grauitate, & leuitate
                  <lb/>
                ita verba fecerunt, vt,
                  <expan abbr="cũ">cum</expan>
                duo propoſita corpora fuerint, quo­
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                rum vtrumque grauitatem habuerit, ſed maiorem alterum,
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                & alterum minorem, vtrum eorum aut grauius, aut leuius
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                eſſet exquirerent, & nullam corporis, aut omnino grauis,
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                aut vndique leuis mentionem fecerint: quippe qui omnia cor
                  <lb/>
                pora, quæ ſub cælo exiſtunt, grauia tantum eſſe crediderint,
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                quorum tamen nonnulla grauiora, nonnulla verò leuiora, vel
                  <lb/>
                minus leuia eſſe voluerint: & quæ minus grauia forent, leuia
                  <lb/>
                nuncupauerint non abſolutè, ſed ad alia comparata, vt
                  <expan abbr="ferrũ">ferrum</expan>
                  <lb/>
                ligno grauius dici ſolet, lignum ferro leuius: cum tamen natu­
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                ra leue non ſit lignum, ſed ponderoſum vt ferrum, ideo vtrum
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                que graue, & propriis ponderibus libratum deorſum ſuopte
                  <lb/>
                nixu fertur.
                  <emph.end type="italics"/>
                </s>
              </p>
              <p type="main">
                <s id="s.000354">
                  <emph type="italics"/>
                Videmus tamen ignem ſemper eſſe leuem, inque ſuperio­
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                rem totius
                  <expan abbr="mũdi">mundi</expan>
                oram ſemper aſcendere: terram ſemper eſſe
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                ponderoſam, & in locum inferiorem numquam non deſcen­
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                dere; quod hæc abſolutè grauia, & omnino leuia ſint, & non
                  <lb/>
                in comparatione ad alterum.
                  <emph.end type="italics"/>
                </s>
              </p>
            </subchap1>
          </chap>
        </body>
      </text>
    </archimedes>
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