Musschenbroek, Petrus van, Physicae experimentales, et geometricae de magnete, tuborum capillarium vitreorumque speculorum attractione, magnitudine terrae, cohaerentia corporum firmorum dissertationes: ut et ephemerides meteorologicae ultraiectinae

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        <div xml:id="echoid-div231" type="section" level="1" n="231">
          <head xml:id="echoid-head251" xml:space="preserve">EXPERIMENTUM IV.</head>
          <p>
            <s xml:id="echoid-s7943" xml:space="preserve">Sit Tubus rectus, cujus altera extremitas hermetice clauſa, altera
              <lb/>
            aperta, in quem Aquam non ingredi, etiamſi aliquouſque ipſi im-
              <lb/>
            merſum, ſupra vidimus; </s>
            <s xml:id="echoid-s7944" xml:space="preserve">hic recipienti immittatur, eductoque Aë-
              <lb/>
            re quantum vulgo fieri poteſt, extremitas aperta Tubi Aquæ immit-
              <lb/>
            tatur; </s>
            <s xml:id="echoid-s7945" xml:space="preserve">hæc intrat, adſcendens ad paulo minorem altitudinem,
              <lb/>
            quam ſi utrimque apertus Tubus fuiſſet: </s>
            <s xml:id="echoid-s7946" xml:space="preserve">Admiſſo deinde in re-
              <lb/>
            cipiens Aëre, altius adſcendit Aqua, fere uſque ad ſummitatem Tu-
              <lb/>
            bi, manente tamen exigua Aëris bulla, impediente quominus omni-
              <lb/>
            no Tubus impleatur.</s>
            <s xml:id="echoid-s7947" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s7948" xml:space="preserve">Quia ope Antliæ Pneumaticæ Aërem rarefacere modo ſolemus in
              <lb/>
            recipientibus, non autem penitus educere, ejus tantillula quanti-
              <lb/>
            tas ſuperſtes manet, ſua elaſticitate impediens, quominus Aqua ad
              <lb/>
            eandem altitudinem in Tubum adſcendat, ad quam perveniſſet, ſi
              <lb/>
            liber Aëri fuiſſet exitus ſuperne conceſſus: </s>
            <s xml:id="echoid-s7949" xml:space="preserve">ſuperſtes tamen Aëris
              <lb/>
            in Tubo portio, multum rarefacta eſt, ideoque a gravitate atmo-
              <lb/>
            ſphæræ in recipiens admiſſæ comprimitur in minus ſpatium, donec ſua
              <lb/>
            elaſticitate & </s>
            <s xml:id="echoid-s7950" xml:space="preserve">pondere Aquæ Tubum implentis, æquilibrium cum
              <lb/>
            atmoſphæræ pondere acquiſiverit: </s>
            <s xml:id="echoid-s7951" xml:space="preserve">Adſcendit hinc Aqua in Tubum
              <lb/>
            preſſa vi atmoſphæræ, quemadmodum in Tubos amplos eodem mo-
              <lb/>
            do tractatos adſcendiſſet.</s>
            <s xml:id="echoid-s7952" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s7953" xml:space="preserve">Quia ſemper aliquid Aëris relinquitur in recipientibus, quæ ope
              <lb/>
            Antliæ Pneumaticæ evacuantur, ſuſpicatus fuit Cl. </s>
            <s xml:id="echoid-s7954" xml:space="preserve">Fayus in L’Hiſt.
              <lb/>
            </s>
            <s xml:id="echoid-s7955" xml:space="preserve">de L’Acad. </s>
            <s xml:id="echoid-s7956" xml:space="preserve">Roy. </s>
            <s xml:id="echoid-s7957" xml:space="preserve">A°. </s>
            <s xml:id="echoid-s7958" xml:space="preserve">1724. </s>
            <s xml:id="echoid-s7959" xml:space="preserve">preſſionem hujus reſidui Aëris ſufficere
              <lb/>
            ad elevandam in Tubos Aquam, eamque penitus elapſuram, ſi
              <lb/>
            Tubi in vacuo perfecto ponerentur: </s>
            <s xml:id="echoid-s7960" xml:space="preserve">Ut hoc explorarem recipiens
              <lb/>
            omni Aëre evacuandum erat, quod quamvis difficile fieri poſſit,
              <lb/>
            nihilominus ſequenti methodo peractum fuit. </s>
            <s xml:id="echoid-s7961" xml:space="preserve">Vid. </s>
            <s xml:id="echoid-s7962" xml:space="preserve">Tab XII. </s>
            <s xml:id="echoid-s7963" xml:space="preserve">fig. </s>
            <s xml:id="echoid-s7964" xml:space="preserve">
              <lb/>
            11. </s>
            <s xml:id="echoid-s7965" xml:space="preserve">Tubos Capillares EE agglutinavi maſſæ ceraceæ OO, quam
              <lb/>
            tegebam recipiente R. </s>
            <s xml:id="echoid-s7966" xml:space="preserve">hoc, Antliæ laminæ S impoſitum, accura-
              <lb/>
            tiſſime implevi Aquâ, antea perfectiſſime orbata omni ſuo Aëre,
              <lb/>
            nullaque jam amplius in recipiente bulla aërea obſervari poterat: </s>
            <s xml:id="echoid-s7967" xml:space="preserve">
              <lb/>
            tum lente embolo â fundo Antliæ remoto, deſcendit Aqua ſua gra-
              <lb/>
            vitate ex recipiente, qua eductâ, Tubuli, qui prius omnino reple-
              <lb/>
            ti fuerant, aliquantum Aquæ ex ſe dimiſerunt, retinentes </s>
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