Casati, Paolo, Terra machinis mota : dissertationes geometricae, mechanicae physicae hydrostaticae

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    <archimedes>
      <text>
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          <chap>
            <p type="main">
              <s>
                <pb xlink:href="018/01/202.jpg" pagenum="188"/>
              (cuius grauitas in aere 71 1/2) imponatur ex
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              aëre ferrum (cuius grauitas 42) innatatio
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              ferri debet conſiderari iuxta differentiam gra­
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              uitatum in aëre, & leuitatio ferri ex mercurio
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              in aërem eſt——29 1/2. At ſi mercurio ſuper­
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              fuſa ſit aqua, leuitas ferri deſumenda eſt ex
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              differentiâ inter grauitatem mercurij & gra­
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              uitatem ferri, quod intrà aquam non am­
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              pliùs graue eſt vt 42, ſed vt 36 2/3: quare leui­
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              tas ferri tunc eſt maior, videlicet vt——34 5/6.
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              Ita ſimiliter cùm globus terrenus ex aquâ in
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              aerem, non in ignem veniret, eius grauitas
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              cum aëre debuit, non cum igne, compa­
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              rari. </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="note89"/>
                <emph type="italics"/>
              XXCIX
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              Solida plus
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              leuitant ex
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              mercurio in
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              aquam
                <expan abbr="quã">quam</expan>
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              in aërem.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="main">
              <s>
                <emph type="italics"/>
              Merſ.
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              </s>
              <s> Qui aquam mercurio ſuperfudiſti,
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                <arrow.to.target n="note90"/>
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              cur pariter non circumfudiſti? </s>
              <s>tunc enim
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              mercurij in aquâ exiſtentis grauitas non eſ­
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              ſet 71 1/6 ſed 66 1/2, & in illo leuitas ferri (cuius
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              grauitas in aquâ 36 2/3) eſſet pariter——29 1/2.
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              Duo ſiquidem æqualia corpora inæqualiter
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              grauia ſecundùm ſpeciem ſi in eodem me­
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              dio conſtituantur, quodcunque illud ſit, ean­
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              dem ſemper ſeruant differentiam, quia vtri­
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              que æqualis fit grauitatis deceſsio aut acceſsio
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              pro maiori aut minori grauitate medij. </s>
              <s>Igi­
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              rur ſi terreni globi grauitas ſpecifica compa­
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              rata cum ſpecificâ grauitate aquæ in vno me­</s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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