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

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    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s id="s.003003">
                <pb pagenum="563" xlink:href="010/01/571.jpg"/>
                <arrow.to.target n="marg796"/>
                <lb/>
              ciſſima vnione, efformareque veluti fornices conti­
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              nentes ſpatiola vacua, non ſecùs ac pumicis ſolidæ
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              particulæ duræ ſunt, & tenacitèr inter ſe connexæ,
                <lb/>
              licet innumeras poroſitates admittant. </s>
              <s id="s.003004">itaque benè
                <lb/>
              ſaluari poteſt durities aquæ glaciatæ cum expanſio­
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              ne, ſeu rarefactione eius pendente ab innumeris po­
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              ris vacuis, qui ſunt cauitates tubulorum aereorum̨
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              intra aquam contentorum. </s>
            </p>
            <p type="margin">
              <s id="s.003005">
                <margin.target id="marg796"/>
              Cap. 13 cau­
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              ſa rarefacti­
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              onis glaciei
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              affertur.</s>
            </p>
            <p type="main">
              <s id="s.003006">Sed adhùc remanet difficultas, quare particulæ a­
                <lb/>
              quæ modo expoſito
                <expan abbr="cõnexæ">connexæ</expan>
              ſaxeam duritiem acqui­
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              rant, & contra aer, ſpiritus vini, &c. </s>
              <s id="s.003007">fluida ſemper re­
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              maneant, hoc profectò pendere videtur à diuerſą
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              conformatione particularum eorumdem fluidorum,
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              nam ſi villi externi particularum aquæ ab inſigni fri­
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              gidate rigidi redduntur, non eſt impoſſibile, vt itą
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              interſe nectantur, vt non poſſint ab inuicem facilè
                <lb/>
              ſeparari, & ſic conſiſtentiam
                <expan abbr="duritiẽq;">duritienque</expan>
              creent; è con­
                <lb/>
              tra ſi externi villi olei, ſpiritus vini, &c. </s>
              <s id="s.003008">non habeant
                <lb/>
              eamdem naturam, & conſiſtentiam, vt nimirum ab in­
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              ſigni frigidate tenſionem, & rigiditatem non acqui­
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              rant, tunc mirum non erit non poſſe ad inuicem con­
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              glutinari, & texturam ſolidam, & duram efficere, &
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              hoc ſatis veriſimile eſſe videtur in oleo, & ſpiritu vi­
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              ni, quæ cùm ex particulis igneis componantur, faci­
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              lè villi externi flexibiles, & cedentes conſeruari poſ­
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              ſunt; at in aere forſan villi externi, aut exigui ſunt,
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              aut non incuruati, aut lubrici, itaut forti vnione inter
                <lb/>
              ſe mutuò connecti nequeant. </s>
              <s id="s.003009">
                <expan abbr="Idipsũ">Idipsum</expan>
              dici poteſt dę
                <lb/>
              particulis hydrargyri; vnde mirum non eſt huiuſmo-</s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>