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

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    <archimedes>
      <text>
        <body>
          <chap>
            <pb xlink:href="018/01/005.jpg"/>
            <p type="main">
              <s>
                <emph type="center"/>
              Amice Lector.
                <emph.end type="center"/>
              </s>
            </p>
            <p type="main">
              <s>MACHINALIS & Hydroſtaticæ Philoſophiæ,
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              quam premo, ſpecimen aliquod exhibi­
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              turus, ac Prodromum tantiſper emiſſu­
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              rus dum extrema manus operi accedat,
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              Archimedæum Problema ſelegi, quo tel­
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              lurem moueri poſſe proſitebatur, niſi locus, vbi machi­
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              na conſiſteret, defuiſſet. </s>
              <s>Qua ille machinatione id per­
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              ficere moliretur, Hiſtoricis diſputandum relinquo. </s>
              <s>Mul­
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              tiplex ſuppetebat methodus; ſatis ſcio. </s>
              <s>Placuit tamen
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              potiſſimùm oſtendere, quantum in hoc negotio machi­
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              narum Compoſitio præſtet earundem Augmento: id­
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              que intrà eiuſdem Facultatis genus; vt vel ſolos Vectes
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              adhibendo, vel ſolas Trochleas &c. </s>
              <s>quod verò in vno
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              genere explicatur, de cæteris dictum facilè intelligitur. </s>
              <s>
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              Ne quis autem in motu iſto perficiendo aut immenſas,
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              aut innumeras requiri machinas exiſtimaret, tentaui to­
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              tius globi terraquei grauitatem, quantum coniiciendo
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              aſſequi fas eſt, explorare: vnde apertâ conſecutione con­
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              ſicitur non adeò multis membris diſtingui oportere ma­
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              chinam hoc in opere neceſſariam: vtinam de materię
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              ipsâ non ſatis firmâ dubitari non poſſet. </s>
              <s>Quoniam ve­
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              rò grauitatis notitia pendet ex mole præcognitâ; vt ab­
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              ſolutum eſſet Problema, methodos indicaui, quibus
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              terræ magnitudinem indagare poſsimus: vt videlicet ex
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              notâ mole pondus innoteſcat, & hinc definiri poſſit ma­
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              china quæ datæ grauitati mouendæ proportione reſpon­
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              deat. </s>
              <s>Sed quia in motu ipſo aqua in partem ſecederet,
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              motumque faciliorem efficeret; examinandum fuit, </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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