Schott, Gaspar, Mechanica hydraulico-pneumatica. Pars I. Mechanicae Hydraulico-pnevmaticae Theoriam continet. , 1657

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            <p type="main">
              <s>
                <pb xlink:href="051/01/202.jpg" pagenum="171"/>
              bat. </s>
              <s>Ut ſi immiſſæ ſuntduæ tertiæ pedis cubici, occupabit aër
                <lb/>
              unam tertiam partem. </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg285"/>
                <emph type="italics"/>
              Aër quan­
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              tum conden­
                <lb/>
              ſari poſſit,
                <lb/>
              invenire.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="main">
              <s>Atque hæc eſt expeditiſſima ratio menſurandi conden­
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              ſationem aëris. </s>
              <s>Fieri quoque idipſum poteſt ſclopeto pneu­
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              matico, de quo infrà loco cit. cap. 2. Machina 13. & 14. </s>
            </p>
            <p type="main">
              <s>Credunt aliqui, inquit Merſennus in Hydraulicis Propo­
                <lb/>
              ſit. 31. aërem per condenſationem non poſſe niſi ad tertiam ſpa­
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              tij, quod naturaliter occupat, partem redigi, quòd videant
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              aquam in vas infuſam tres heminas ſeu libras continens, non
                <lb/>
              ſuperare duas heminas, ob aërem intus manentem. </s>
              <s>Certum
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              eſt tamen, ſubdit idem, magis condenſari poſſe; ipſeque ex­
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              perientiâ didicit, poſſe ad ſpatium quindecuplo minus in ſclo­
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              peto pneumatico cogi, idque ſolâ vi manus ſyringe utentis;
                <lb/>
              quæ vis cùm intendi multò magis poſſit, dubium non eſt, aë­
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              rem adhuc multò magis condenſati poſſe. </s>
              <s>Vide Merſennum
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              in Hydraulicis loco citato. </s>
            </p>
            <p type="main">
              <s>
                <emph type="center"/>
              Propoſitio III.
                <emph.end type="center"/>
              </s>
            </p>
            <p type="main">
              <s>
                <emph type="center"/>
              Quantum rarefieri aër poſſit, invenire.
                <emph.end type="center"/>
              </s>
            </p>
            <p type="main">
              <s>MArinus Merſennus loco citato Propoſit. 31. ait, conſtare,
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                <arrow.to.target n="marg286"/>
                <lb/>
              aërem ita rarefieri in ignitis æolopilis (quas deſcribimus
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              Parte 2. Claſſe 1. cap. 2. Machina 6.) ut ſeptuageſima pars aë­
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              ris priùs incluſi, & nondum rarefacti, æolopilas impleat. </s>
              <s>Hæc
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              autem rarefactionis quantitas inveniri poteſt præſidio Æolo­
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              pilæ hunc in modum. </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg286"/>
                <emph type="italics"/>
              Aër quan­
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              tum poſſit
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              rarefieri.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="main">
              <s>Æolopila notæ capacitatis calefiat eò uſque, donec ma­
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              jorem vim caloris ſuſtinere ampliùs non poſſe judicetur citra
                <lb/>
              liquefactionis periculum: ſic enim fiet, ut quàm minimùm aë­
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              ris rarefacti totam ipſius capacitatem expleat. </s>
              <s>Quo facto,
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              igni extracta ſtatim aquæ frigidæ immergatur. </s>
              <s>Continget
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              enim ut aër, qui rarefactus totam Æolopilam occupabat, ad
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              naturalem redeat conſtitutionem; ac proinde Æolopila, nè
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              detur vacuum, aquam ſuget. </s>
              <s>Hujus aquæ quantitas ſi fiat </s>
            </p>
          </chap>
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