Gravesande, Willem Jacob 's, Physices elementa mathematica, experimentis confirmata sive introductio ad philosophiam Newtonianam; Tom. 1

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            <s xml:id="echoid-s7928" xml:space="preserve">
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            rem, quando fundus cylindro intruditur, impeditque ne
              <lb/>
            aqua dum fundus movetur effluat. </s>
            <s xml:id="echoid-s7929" xml:space="preserve">Corium hocce oleo im-
              <lb/>
            mergitur, poſt aliquot dies extrahitur, ut per æquale tem-
              <lb/>
            pus in aqua maceretur; </s>
            <s xml:id="echoid-s7930" xml:space="preserve">qua adhibita præparatione, co-
              <lb/>
            rium probe oleo & </s>
            <s xml:id="echoid-s7931" xml:space="preserve">aqua illinitur, moveturque fundus va-
              <lb/>
            riis vicibus per cylindrum, & </s>
            <s xml:id="echoid-s7932" xml:space="preserve">per biduum aut triduum
              <lb/>
            in hoc relinquitur. </s>
            <s xml:id="echoid-s7933" xml:space="preserve">Ita præparatum corium per multos an-
              <lb/>
            nos experimentis inſervire poteſt, ſi, ubi hæc inſtituenda
              <lb/>
            ſunt, corium cum fundo jungatur, oleo & </s>
            <s xml:id="echoid-s7934" xml:space="preserve">aquâ illiniatur, tunc-
              <lb/>
            que per aliquot horas, aut integrum diem in cylindro relin-
              <lb/>
            quatur, antequam Experimenta inſtituantur. </s>
            <s xml:id="echoid-s7935" xml:space="preserve">Immediate
              <lb/>
            etiam ante Experimenta iterum oleo & </s>
            <s xml:id="echoid-s7936" xml:space="preserve">aquâ illiniri debet, & </s>
            <s xml:id="echoid-s7937" xml:space="preserve">
              <lb/>
            facile tunc fundus movetur, & </s>
            <s xml:id="echoid-s7938" xml:space="preserve">exacte aquam retinet. </s>
            <s xml:id="echoid-s7939" xml:space="preserve">Co-
              <lb/>
            rium neque nimis tenue neque nimis craſſum adhibendum;
              <lb/>
            </s>
            <s xml:id="echoid-s7940" xml:space="preserve">quod judicio artificis relinquitur.</s>
            <s xml:id="echoid-s7941" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s7942" xml:space="preserve">In centro fundi cum hoc cohæret cylindrus æneus tenuis
              <lb/>
            hi, quo motus fundi dirigitur, tranſit enim hicce cylin-
              <lb/>
            drus per forameo m in lamina B, quæ cylindro majori A
              <lb/>
            ſuperimponitur, & </s>
            <s xml:id="echoid-s7943" xml:space="preserve">in ejus ora in inciſione hæret. </s>
            <s xml:id="echoid-s7944" xml:space="preserve">In ſuperio-
              <lb/>
            ri parte cylindri hi foramen datur, ut cum fundo, ope unci
              <lb/>
            n, jungatur catena ænea pn, quæ per tubum ſtatim memo-
              <lb/>
            randum D immittitur, ut ope hujus catenæ fundus cum bra-
              <lb/>
            chio libræ conjungatur.</s>
            <s xml:id="echoid-s7945" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s7946" xml:space="preserve">Cylindrus A operculo C tegitur, & </s>
            <s xml:id="echoid-s7947" xml:space="preserve">ne aqua effluere poſ-
              <lb/>
            ſit obtegenda eſt ora cylindri annulo coriaceo, qui ope co-
              <lb/>
            chleæ, qua operculum jungitur cum cylindro, inter oram
              <lb/>
            & </s>
            <s xml:id="echoid-s7948" xml:space="preserve">ipſum operculum arcte comprimitur; </s>
            <s xml:id="echoid-s7949" xml:space="preserve">operculo ut & </s>
            <s xml:id="echoid-s7950" xml:space="preserve">ipſi
              <lb/>
            cylindro adduntur anſæ, ut magis commode aperiatur & </s>
            <s xml:id="echoid-s7951" xml:space="preserve">clau-
              <lb/>
            datur cylindrus. </s>
            <s xml:id="echoid-s7952" xml:space="preserve">In medio perforatur operculum, & </s>
            <s xml:id="echoid-s7953" xml:space="preserve">cylin-
              <lb/>
            drus cavus l, ab exteriori parte cochleâ circumdatus, cum
              <lb/>
            illo cohæret, ut tubus D cum machina conjungatur; </s>
            <s xml:id="echoid-s7954" xml:space="preserve">etiam
              <lb/>
            hîc adhibito corio aquæ effluxus cohibetur.</s>
            <s xml:id="echoid-s7955" xml:space="preserve"/>
          </p>
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        <div xml:id="echoid-div1109" type="section" level="1" n="273">
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            <emph style="sc">Experimentum</emph>
          1.</head>
          <p>
            <s xml:id="echoid-s7956" xml:space="preserve">Partibus machinæ, ut dictum, junctis, catena, quæ cum
              <lb/>
              <note position="left" xlink:label="note-0288-01" xlink:href="note-0288-01a" xml:space="preserve">723.</note>
            fundo mobili cohæret, brachio libræ annectatur, ita ut ju-
              <lb/>
            gum libræ ſit in fitu horizontali, quando fundus ab </s>
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