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

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              <pb o="170" file="0242" n="263" rhead="PHYSICES ELEMENTA"/>
            tiam quæ paululum ſemidiametrum globorum excedit,
              <lb/>
            concipiantur, horum interſectio ſit ipſe axis circumvolutio-
              <lb/>
            nis: </s>
            <s xml:id="echoid-s6680" xml:space="preserve">quod præſtatur ſi cardines adhibeantur ut G (fig. </s>
            <s xml:id="echoid-s6681" xml:space="preserve">2.)
              <lb/>
            </s>
            <s xml:id="echoid-s6682" xml:space="preserve">quorum partes b, b, ad majorem firmitatem, ligno inſerun-
              <lb/>
            tur.</s>
            <s xml:id="echoid-s6683" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s6684" xml:space="preserve">In centro cardinis ſuperioris A, datur cylindrus parvus a,
              <lb/>
            (fig. </s>
            <s xml:id="echoid-s6685" xml:space="preserve">2.) </s>
            <s xml:id="echoid-s6686" xml:space="preserve">in cujus baſi foramen datur, quod cum alio a latere
              <lb/>
            conjungitur, ita ut per illa immittatur filum i h, quo glo-
              <lb/>
            bus P ſuſpenditur, & </s>
            <s xml:id="echoid-s6687" xml:space="preserve">quod paxillo annectitur.</s>
            <s xml:id="echoid-s6688" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s6689" xml:space="preserve">Ope cochlearum F, F, F, F, F, Machina in ſitu ver-
              <lb/>
            ticali diſponitur, ita ut filum h i cum axe Machinæ coinci-
              <lb/>
            dat.</s>
            <s xml:id="echoid-s6690" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s6691" xml:space="preserve">In m, m, clavi duo planis memoratis inſeruntur, his glo-
              <lb/>
            bi Q, Q, ſuſpenduntur, ad talem diſtantiam a planis ut unum-
              <lb/>
            quodque illud, cui applicatur, fere tangat; </s>
            <s xml:id="echoid-s6692" xml:space="preserve">id eſt, ut linea,
              <lb/>
            quæ concipitur per centra globorum P & </s>
            <s xml:id="echoid-s6693" xml:space="preserve">Q, huic plano ſit
              <lb/>
            parallela; </s>
            <s xml:id="echoid-s6694" xml:space="preserve">requiritur ulterius, ut hi globi, ad eandem altitudi-
              <lb/>
            nem poſiti, ſeſe mutuo tangant.</s>
            <s xml:id="echoid-s6695" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s6696" xml:space="preserve">Fila, quibus globi Q & </s>
            <s xml:id="echoid-s6697" xml:space="preserve">Q ſuſpenduntur, trajiciunt fora-
              <lb/>
            mina in prædictis clavis, & </s>
            <s xml:id="echoid-s6698" xml:space="preserve">paxillis l, l annectuntur, ut
              <lb/>
            commode elevari, deprimique, & </s>
            <s xml:id="echoid-s6699" xml:space="preserve">omnium globorum cen-
              <lb/>
            tra in eodem plano, ad horizontem parallelo, diſponi poſ-
              <lb/>
            ſint. </s>
            <s xml:id="echoid-s6700" xml:space="preserve">Regula ænea R, ita inflexa ut juxta illam globus Pin
              <lb/>
            ſuo motu adſcendat, convertitur circa extremitatum alte-
              <lb/>
            ram, & </s>
            <s xml:id="echoid-s6701" xml:space="preserve">centrum motus cum axe Machinæ coïncidit. </s>
            <s xml:id="echoid-s6702" xml:space="preserve">In-
              <lb/>
            ſervit ad notandam viam globi P, & </s>
            <s xml:id="echoid-s6703" xml:space="preserve">altitudinem ad quam
              <lb/>
            adſcendit.</s>
            <s xml:id="echoid-s6704" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s6705" xml:space="preserve">Globus uterque Q juxta planum cui applicatur dimittitur,
              <lb/>
            & </s>
            <s xml:id="echoid-s6706" xml:space="preserve">altitudo a qua dimittitur notatur indice plano infixo, ad
              <lb/>
            quod in utroque plano foramina quatuor dantur, angulos
              <lb/>
            æquales, reſpectu motus filorum, continentia.</s>
            <s xml:id="echoid-s6707" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s6708" xml:space="preserve">Quando globus Q a certa altitudine dimittitur, in glo-
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            bum P impingit, illumque ſecundum eandem directionem
              <lb/>
            propellit.</s>
            <s xml:id="echoid-s6709" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div947" type="section" level="1" n="239">
          <head xml:id="echoid-head337" xml:space="preserve">
            <emph style="sc">Experimentum</emph>
          . I.</head>
          <note position="left" xml:space="preserve">616</note>
          <p>
            <s xml:id="echoid-s6710" xml:space="preserve">Exhibetur hic horizontalis ſectio hujus Machinæ, cui
              <lb/>
              <note position="left" xlink:label="note-0242-02" xlink:href="note-0242-02a" xml:space="preserve">
                <emph style="sc">TAB. XXIV</emph>
              .
                <lb/>
              fig. 3.</note>
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