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

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        <div xml:id="echoid-div1618" type="section" level="1" n="385">
          <p>
            <s xml:id="echoid-s11350" xml:space="preserve">
              <pb o="315" file="0425" n="465" rhead="MATHEMATICA. LIB. II. CAP. XVII."/>
            in veſicæ ſuperficiem exteriorem minuitur; </s>
            <s xml:id="echoid-s11351" xml:space="preserve">eodem
              <lb/>
            tempore aë veſicæ incluſus ſeſe expandet, & </s>
            <s xml:id="echoid-s11352" xml:space="preserve">hæc inflabi-
              <lb/>
            tur.</s>
            <s xml:id="echoid-s11353" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s11354" xml:space="preserve">Elaſticitatis vim totius Atmoſphæræ ponderi æquari vi-
              <lb/>
            dimus; </s>
            <s xml:id="echoid-s11355" xml:space="preserve">effectus hujus vis ſub oculos ſequenti Experimento
              <lb/>
            ponitur.</s>
            <s xml:id="echoid-s11356" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div1620" type="section" level="1" n="386">
          <head xml:id="echoid-head527" xml:space="preserve">
            <emph style="sc">Experimentum</emph>
          4.</head>
          <p>
            <s xml:id="echoid-s11357" xml:space="preserve">Veſica exacte clauſa, & </s>
            <s xml:id="echoid-s11358" xml:space="preserve">aëre pro parte tantum repleta,
              <lb/>
              <note position="right" xlink:label="note-0425-01" xlink:href="note-0425-01a" xml:space="preserve">1102.</note>
            pyxidi æneæ A, cujus diameter eſt trium pollicum cum ſe-
              <lb/>
              <note position="right" xlink:label="note-0425-02" xlink:href="note-0425-02a" xml:space="preserve">TAB. XLI.
                <lb/>
              fig. 1.</note>
            miſſe, includitur, obtegiturque hæc operculo ligneo, aut
              <lb/>
            plumbeo, quod in ipſam pyxidem penetrat ita, ut quamvis e-
              <lb/>
            levetur non decidat.</s>
            <s xml:id="echoid-s11359" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s11360" xml:space="preserve">Operculo pondera plumbea P, P, imponuntur, habent hæc
              <lb/>
            foramen in medio, & </s>
            <s xml:id="echoid-s11361" xml:space="preserve">trajiciuntur cylindro E, cum oper-
              <lb/>
            culo cohærenti. </s>
            <s xml:id="echoid-s11362" xml:space="preserve">Exhauſto aëre veſica, ut in præcedenti Ex-
              <lb/>
            perimento, inflatur, quo pondera elevantur. </s>
            <s xml:id="echoid-s11363" xml:space="preserve">Plura pro vitri
              <lb/>
            magnitudine adhibentur pondera, & </s>
            <s xml:id="echoid-s11364" xml:space="preserve">licet borum ſumma ſe-
              <lb/>
            xaginta aut ſeptuaginta libras ſuperet, facillime elevantur.</s>
            <s xml:id="echoid-s11365" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s11366" xml:space="preserve">Aëris gravitas, hujus preſſio quæ ex gravitate oritur, ut
              <lb/>
            & </s>
            <s xml:id="echoid-s11367" xml:space="preserve">elaſticitas, effectus varios notabiles edunt; </s>
            <s xml:id="echoid-s11368" xml:space="preserve">quoſdam ſe-
              <lb/>
            ligam, & </s>
            <s xml:id="echoid-s11369" xml:space="preserve">Experimentis confirmabo.</s>
            <s xml:id="echoid-s11370" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div1622" type="section" level="1" n="387">
          <head xml:id="echoid-head528" xml:space="preserve">
            <emph style="sc">Experimentum</emph>
          5.</head>
          <p>
            <s xml:id="echoid-s11371" xml:space="preserve">Foramini in medio orbis LL antliæ pneumaticæ, in in-
              <lb/>
              <note position="right" xlink:label="note-0425-03" xlink:href="note-0425-03a" xml:space="preserve">1103.</note>
            feriori parte, ope cochleæ, jungitur cylindrus æneus per-
              <lb/>
              <note position="right" xlink:label="note-0425-04" xlink:href="note-0425-04a" xml:space="preserve">TAB. XXXIX.
                <lb/>
              fig. 3.</note>
            foratus, cohærens cum tubo vitreo AB, ab utraque parte
              <lb/>
            aperto, cujus extremitas B mercurio immergitur. </s>
            <s xml:id="echoid-s11372" xml:space="preserve">In tu-
              <lb/>
            bo e g, clauſo in e, & </s>
            <s xml:id="echoid-s11373" xml:space="preserve">aëre vacuo, mercurius ſuſtinetur, ut
              <lb/>
            antea dictum . </s>
            <s xml:id="echoid-s11374" xml:space="preserve">Vas V cum tubo orbi L L imponitur &</s>
            <s xml:id="echoid-s11375" xml:space="preserve">
              <note position="right" xlink:label="note-0425-05" xlink:href="note-0425-05a" xml:space="preserve">* 1056.</note>
            vitro D C obtegitur, quo omnis communicatio tollitur in-
              <lb/>
            ter aërem exteriorem & </s>
            <s xml:id="echoid-s11376" xml:space="preserve">vas V, quod cum cavitate tubi AB
              <lb/>
            communicatur. </s>
            <s xml:id="echoid-s11377" xml:space="preserve">Aër in hoc tubo elaſticitate ſua impedit,
              <lb/>
            ne mercurius preſſione aëris externi, in tubum adſcendat;
              <lb/>
            </s>
            <s xml:id="echoid-s11378" xml:space="preserve">aër etiam recipienti DC incluſus elaſticitate ſuſtinet mer-
              <lb/>
            curium in tubo g e . </s>
            <s xml:id="echoid-s11379" xml:space="preserve">Ex vaſe DC aër exhauriatur; </s>
            <s xml:id="echoid-s11380" xml:space="preserve">
              <note position="right" xlink:label="note-0425-06" xlink:href="note-0425-06a" xml:space="preserve">* 1073.</note>
            denſitas minuitur, elaſticitas etiam decreſcit , & </s>
            <s xml:id="echoid-s11381" xml:space="preserve">
              <note position="right" xlink:label="note-0425-07" xlink:href="note-0425-07a" xml:space="preserve">* 1071.</note>
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