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

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        <div xml:id="echoid-div1228" type="section" level="1" n="312">
          <pb o="230" file="0322" n="353" rhead="PHYSICES ELEMENTA"/>
          <p>
            <s xml:id="echoid-s8624" xml:space="preserve">Secunda corrigitur paululum inclinando fluidi directio-
              <lb/>
            nem, ut per ſe patet; </s>
            <s xml:id="echoid-s8625" xml:space="preserve">hac de cauſa, fluidum, directione paululum
              <lb/>
              <note position="left" xlink:label="note-0322-01" xlink:href="note-0322-01a" xml:space="preserve">803.</note>
            ad horizontem inclinata, altius quâm verticaliter adſcendit.</s>
            <s xml:id="echoid-s8626" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div1232" type="section" level="1" n="313">
          <head xml:id="echoid-head438" xml:space="preserve">
            <emph style="sc">Experimentum i</emph>
          .</head>
          <p>
            <s xml:id="echoid-s8627" xml:space="preserve">Machinæ ſuperius deſcriptæ , ope cochleæ in N
              <note position="left" xlink:label="note-0322-02" xlink:href="note-0322-02a" xml:space="preserve">804.</note>
            gitur tubus curvus NO, ex quo aqua per foramen exiguum
              <lb/>
              <note position="left" xlink:label="note-0322-03" xlink:href="note-0322-03a" xml:space="preserve">TAB. XXXIII.
                <lb/>
              fig. 2.</note>
            in altum proſilit verticaliter; </s>
            <s xml:id="echoid-s8628" xml:space="preserve">convertendo paululum tubum,
              <lb/>
              <note symbol="*" position="left" xlink:label="note-0322-04" xlink:href="note-0322-04a" xml:space="preserve">797.</note>
            quod facile fit propter cochleam in N, inclinatur directio
              <lb/>
            motus aquæ, & </s>
            <s xml:id="echoid-s8629" xml:space="preserve">altius hæc adſcendit. </s>
            <s xml:id="echoid-s8630" xml:space="preserve">Hac autem inclina-
              <lb/>
            tione ſpectaculi amœnitas deſtruitur.</s>
            <s xml:id="echoid-s8631" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s8632" xml:space="preserve">Circa tertiam cauſam retardationis notandum, eo majo-
              <lb/>
            rem, ſervata proportione, dari attritum quo foramen mi-
              <lb/>
            nus eſt; </s>
            <s xml:id="echoid-s8633" xml:space="preserve">circumferentia enim, in qua attritus datur, creſcit
              <lb/>
            ut diameter, & </s>
            <s xml:id="echoid-s8634" xml:space="preserve">ipſum foramen augetur ut quadratum dia-
              <lb/>
            metri ; </s>
            <s xml:id="echoid-s8635" xml:space="preserve">augeturque magis fluidi proſilientis quantitas
              <note symbol="*" position="left" xlink:label="note-0322-05" xlink:href="note-0322-05a" xml:space="preserve">El. XII.</note>
            attritus. </s>
            <s xml:id="echoid-s8636" xml:space="preserve">Etiam auctâ celeritate attritum augeri clarum eſt,
              <lb/>
            quare foramina cum altitudine aquæ proſilientis ſunt augenda,
              <lb/>
              <note position="left" xlink:label="note-0322-06" xlink:href="note-0322-06a" xml:space="preserve">805.</note>
            ut dum ex una cauſa attritus augetur, ex alia minua-
              <lb/>
            tur.</s>
            <s xml:id="echoid-s8637" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s8638" xml:space="preserve">Extremitates tuborum, ex quibus aqua proſilit, vulgo
              <lb/>
              <note position="left" xlink:label="note-0322-07" xlink:href="note-0322-07a" xml:space="preserve">TAB. XXXIII.
                <lb/>
              fig. 3.</note>
            figuram coni truncati habent, ut in P repræſentatur; </s>
            <s xml:id="echoid-s8639" xml:space="preserve">in
              <lb/>
            qua extremitate magnum aqua attritum patitur & </s>
            <s xml:id="echoid-s8640" xml:space="preserve">irregula-
              <lb/>
            riter movetur, motuque irregulari in altum exit. </s>
            <s xml:id="echoid-s8641" xml:space="preserve">Corri-
              <lb/>
            guntur hæc obtegendo extremitatem tubi laminâ planâ & </s>
            <s xml:id="echoid-s8642" xml:space="preserve">po-
              <lb/>
              <note position="left" xlink:label="note-0322-08" xlink:href="note-0322-08a" xml:space="preserve">806.</note>
            litâ, in qua foramen datur, cujus latera admodum polita
              <lb/>
            etiam deſiderantur; </s>
            <s xml:id="echoid-s8643" xml:space="preserve">altius tunc aqua proſilit; </s>
            <s xml:id="echoid-s8644" xml:space="preserve">&</s>
            <s xml:id="echoid-s8645" xml:space="preserve">, quia
              <lb/>
            motu omnino regulari adſcendit, perfecte eſt transluci-
              <lb/>
            da.</s>
            <s xml:id="echoid-s8646" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div1236" type="section" level="1" n="314">
          <head xml:id="echoid-head439" xml:space="preserve">
            <emph style="sc">Experimentum</emph>
          2.</head>
          <p>
            <s xml:id="echoid-s8647" xml:space="preserve">Detur tubus memoratus P, ut & </s>
            <s xml:id="echoid-s8648" xml:space="preserve">cylindrus Q, ab una
              <lb/>
              <note position="left" xlink:label="note-0322-09" xlink:href="note-0322-09a" xml:space="preserve">807.</note>
            parte, laminâ perforatâ, clauſus; </s>
            <s xml:id="echoid-s8649" xml:space="preserve">hi ſeparatim ope cochleæ
              <lb/>
              <note position="left" xlink:label="note-0322-10" xlink:href="note-0322-10a" xml:space="preserve">TAB. XXXIII.
                <lb/>
              fig. 3.</note>
            jungantur extremitati O tubi NO (fig. </s>
            <s xml:id="echoid-s8650" xml:space="preserve">2.)</s>
            <s xml:id="echoid-s8651" xml:space="preserve">; </s>
            <s xml:id="echoid-s8652" xml:space="preserve">manente aqua
              <lb/>
            ad eandem altitudinem in vaſe AB, ſi proſiliat ex tubo P,
              <lb/>
            & </s>
            <s xml:id="echoid-s8653" xml:space="preserve">ex cylindro Q, duorum pollicum ad minimum in hac
              <lb/>
            exigua altitudine differentia dabitur.</s>
            <s xml:id="echoid-s8654" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s8655" xml:space="preserve">Tubi, per quos aqua ex receptaculo deducitur, latiſſi-
              <lb/>
              <note position="left" xlink:label="note-0322-11" xlink:href="note-0322-11a" xml:space="preserve">808.</note>
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