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

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    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s id="s.000840">
                <pb pagenum="166" xlink:href="010/01/174.jpg"/>
                <arrow.to.target n="marg213"/>
              </s>
            </p>
            <p type="margin">
              <s id="s.000841">
                <margin.target id="marg213"/>
              Cap. 4. poſi­
                <lb/>
              tiuam leui­
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              tatem noņ
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              dari.</s>
            </p>
            <p type="main">
              <s id="s.000842">Et hinc apertè conijcio non benè perceptum fuiſ­
                <lb/>
              ſe modum quomodò medium fluidum ſursùm impel­
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              lat
                <expan abbr="extrudatq;">extrudatque</expan>
              lignum minùs graue ipſa aqua, & ideò
                <lb/>
              operæpretium erit apertè, & diſtinctè hoc declarare. </s>
            </p>
            <p type="main">
              <s id="s.000843">
                <emph type="center"/>
              PROP. LXXX.
                <emph.end type="center"/>
              </s>
            </p>
            <p type="main">
              <s id="s.000844">
                <emph type="center"/>
                <emph type="italics"/>
              Niſi lignum, & ambiens aqua collateralis motibus contra­
                <lb/>
              rijs ſursùm, & deorsùm ſimul tempore moueri que­
                <lb/>
              ant, numquam lignum in aqua aſcendet.
                <emph.end type="italics"/>
                <emph.end type="center"/>
              </s>
            </p>
            <figure id="id.010.01.174.1.jpg" xlink:href="010/01/174/1.jpg"/>
            <p type="main">
              <s id="s.000845">SIt vas ABCD aqua plenum iņ
                <lb/>
              cuius fundo apponatur priſma
                <lb/>
              ligneum EFGB hìc adeſt aqua li­
                <lb/>
              gno incumbens AEFH, atque aqua
                <lb/>
              collateralis HFID, quæ comprimit
                <lb/>
              ſubiectum aqueum priſma FICG,
                <lb/>
              Dico primò, quod ſuperincumbens
                <lb/>
              aqua AEFH nequaquàm ſursùm impellit ſubiectum
                <lb/>
              lignum, imò id comprimit: neque præterea ſuperna
                <lb/>
              collateralis aqua HFID prædictum lignum eleuat,
                <lb/>
              ſed tantummodò æquilibratur cum collaterali aqua
                <lb/>
              AEFH. </s>
              <s id="s.000846">Tantummodò ad rem noſtram facit aquą,
                <lb/>
              quæ ad latus ipſius ligni apponitur, FGCI, & hæc
                <expan abbr="">non</expan>
                <lb/>
              ſemper ſubleuare poteſt lignum BF, niſi habuerit
                <lb/>
              duas conditiones, primò vt aqua FC deſcenderę
                <lb/>
              deorsùm valeat, ſecundò vt eodem tempore eadem
                <lb/>
              aqua lignum GE impellere ſursùm poſſit. </s>
              <s id="s.000847">At quan­
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              dò huiuſmodi motus contrarij ob aliquod impedi­
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              mentum fieri ſimùl
                <expan abbr="">non</expan>
              poſſunt, omninò lignum quie-</s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>