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

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      <text>
        <body>
          <chap>
            <p type="main">
              <s id="s.000063">
                <pb pagenum="8" xlink:href="010/01/016.jpg"/>
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                <lb/>
              grauia A & B affixa ſint virgæ alicui rigidæ & conſi­
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              ſtenti vt eſt ACB poteſt enim concipi canalis circu­
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              laris AGBF qui ſi repleatur aqua vel quolibet alio
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                <figure id="id.010.01.016.1.jpg" xlink:href="010/01/016/1.jpg"/>
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              fluido liquore cuius pars dex­
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              tera FAG grauior ſit quam re­
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              liqua fluidi pars GBF ſcilicet
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              ſi fluidum FAG fuerit hydrar­
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              girum, FBG verò aqua com­
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              munis, tunc pariter efficietur
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              libra, & centrum grauitatis
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              amborum liquorum non iace­
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              bit in diametro FCG perpendiculari ad horizontem,
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              ſed vltra ipſum inter C & A, ſcilicet in puncto aliquo
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              D tunc pariter erit centrum totius magnitudinis flui­
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              di ipſum C & in hoc præciſe fiet ſuſpenſio totius flui­
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              di, quia circa ipſum efficiuntur duo motus contrarij,
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              nempe deſcenſus fluidi A & aſpenſus alterius oppoſi­
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              ti fluidi B cùm igitur centrum communis grauitatis D
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              duorum fluidorum diſtet à centro ſuſpenſionis C effi­
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              cietur quoque pendulum, quod circulari motu ex­
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              curret per arcum DE. </s>
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              Cap. 3. dę
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              momentis
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              grauium in
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              fluido inna­
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              tantium</s>
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              <s id="s.000065">
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              PROP. III.
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              <s id="s.000066">
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                <emph type="italics"/>
              Organum in quo videtur motus perpetuus effici
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              poſſe exponitur, atque eius defectus,
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              & inſufficientia detegitur.
                <emph.end type="italics"/>
                <emph.end type="center"/>
              </s>
            </p>
            <p type="main">
              <s id="s.000067">ET hic breui & non omnino ſuperuacanea digreſ­
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              ſione indicabo impoſſibilitatem motus perpetui </s>
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          </chap>
        </body>
      </text>
    </archimedes>