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-div189" type="section" level="1" n="189">
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            <s xml:id="echoid-s6761" xml:space="preserve">
              <pb o="284" file="0298" n="298" rhead="DISSERTATIO"/>
            partes {12/814} pollicis ingreſſæ erunt in tubum, quæ quantitas eſt adeo
              <lb/>
            exigua, ut vix ab oculo diſcerni queat, idcirco in Experimento
              <lb/>
            etiam aliquid, ſed admodum parum Aquæ, tubum intravit Expe-
              <lb/>
            rimentum hoc etiam inſtituit Honor. </s>
            <s xml:id="echoid-s6762" xml:space="preserve">Fabry in Phyſ. </s>
            <s xml:id="echoid-s6763" xml:space="preserve">§. </s>
            <s xml:id="echoid-s6764" xml:space="preserve">3. </s>
            <s xml:id="echoid-s6765" xml:space="preserve">Boyle
              <lb/>
            in Exper. </s>
            <s xml:id="echoid-s6766" xml:space="preserve">phyſ. </s>
            <s xml:id="echoid-s6767" xml:space="preserve">Mech. </s>
            <s xml:id="echoid-s6768" xml:space="preserve">Exp. </s>
            <s xml:id="echoid-s6769" xml:space="preserve">9. </s>
            <s xml:id="echoid-s6770" xml:space="preserve">pag. </s>
            <s xml:id="echoid-s6771" xml:space="preserve">93. </s>
            <s xml:id="echoid-s6772" xml:space="preserve">tum Sturmius in Col-
              <lb/>
            leg. </s>
            <s xml:id="echoid-s6773" xml:space="preserve">Cur. </s>
            <s xml:id="echoid-s6774" xml:space="preserve">Tentam. </s>
            <s xml:id="echoid-s6775" xml:space="preserve">8. </s>
            <s xml:id="echoid-s6776" xml:space="preserve">p. </s>
            <s xml:id="echoid-s6777" xml:space="preserve">45. </s>
            <s xml:id="echoid-s6778" xml:space="preserve">qui tamen abſque demonſtratione id
              <lb/>
            reliquerunt: </s>
            <s xml:id="echoid-s6779" xml:space="preserve">Ex eo autem conſtat Aërem in tubis his contineri ejus-
              <lb/>
            dem denſitatis cum aëre ambiente, vel reliquæ atmoſphæræ: </s>
            <s xml:id="echoid-s6780" xml:space="preserve">pone
              <lb/>
            enim illum eſſe rariorem cum Rohaulto aliisque, an tum in tubum,
              <lb/>
            etiamſi ſuperne clauſum, non premetur a præponderante atmoſphæ-
              <lb/>
            râ liquor: </s>
            <s xml:id="echoid-s6781" xml:space="preserve">id omnino fieret, ſedipſa experientia obſtat, nihil ingredi-
              <lb/>
            tur, quia aër internus & </s>
            <s xml:id="echoid-s6782" xml:space="preserve">externus æque denſus vi ſua elaſtica reſiſtit.</s>
            <s xml:id="echoid-s6783" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div190" type="section" level="1" n="190">
          <head xml:id="echoid-head202" xml:space="preserve">EXPERIMENTUM XIV.</head>
          <p>
            <s xml:id="echoid-s6784" xml:space="preserve">Tubi utrimque aperti, & </s>
            <s xml:id="echoid-s6785" xml:space="preserve">inclinati ad horizontem, extremum ſupe-
              <lb/>
            rius attingat guttam aquæ altius poſitam, hæc intus rapitur deſcenden-
              <lb/>
            do uſque ad inferius extremum, totuſque tubus penitus impletur: </s>
            <s xml:id="echoid-s6786" xml:space="preserve">Fluit
              <lb/>
            autem velocitate majori deſcendens liquor per tubum in hoc Experi-
              <lb/>
            mento, quam aſſurgit in ipſum erectum perpendiculariter in Exp. </s>
            <s xml:id="echoid-s6787" xml:space="preserve">I°,
              <lb/>
            quia duplici vi hic fertur, unâ, qua in tubum adſcendere poteſt ad alti-
              <lb/>
            tudinem perpendicularem 20 linearum, altera eſt ipſa gravitas, idcirco
              <lb/>
            hac vi liquor motu fertur accelerato, veluti omnia gravia, uſque ad
              <lb/>
            oram infimam tubi, ex quâ guttatim effluit. </s>
            <s xml:id="echoid-s6788" xml:space="preserve">Si vero eodem modo
              <lb/>
            teneatur alius tubus, cujus inferius orificium clauſum eſt, nihil A-
              <lb/>
            quæ ſuperius orificium ingreditur, nec deſcendit, excepta aliquâ,
              <lb/>
            ſed vix nudo oculo conſpicienda quantitate; </s>
            <s xml:id="echoid-s6789" xml:space="preserve">quia nec vis tubi in A-
              <lb/>
            quam, nec guttulæ orificio appoſitæ gravitas, ſufficiunt ad aërem
              <lb/>
            in tubo condenſandum, per demonſtrationem modo datam in Ex-
              <lb/>
            perimento XIII.</s>
            <s xml:id="echoid-s6790" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div191" type="section" level="1" n="191">
          <head xml:id="echoid-head203" xml:space="preserve">EXPERIMENTUM. XV.</head>
          <p>
            <s xml:id="echoid-s6791" xml:space="preserve">Quo tubi vitrei majorem longitudinem habent, eo quoque altius
              <lb/>
            in ſe Aquam rapiunt; </s>
            <s xml:id="echoid-s6792" xml:space="preserve">non tamen ſecundum proportionem ali-
              <lb/>
            quam longitudini reſpondentem, cum duo diverlæ longitudinis </s>
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