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

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            <s xml:id="echoid-s3514" xml:space="preserve">
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            Vicentripetâ corpus retinetur in curvâ, & </s>
            <s xml:id="echoid-s3515" xml:space="preserve">centrifugâ cona-
              <lb/>
            tur ex hac recedere. </s>
            <s xml:id="echoid-s3516" xml:space="preserve">Funda agitata æqualiter utramque
              <lb/>
            partem verſus diſtenditur , & </s>
            <s xml:id="echoid-s3517" xml:space="preserve">lapis eacum vi a manu
              <note symbol="*" position="left" xlink:label="note-0140-01" xlink:href="note-0140-01a" xml:space="preserve">247.</note>
            natur recedere, cum qua retinetur, id eſt, manum verſus
              <lb/>
            trahitur.</s>
            <s xml:id="echoid-s3518" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s3519" xml:space="preserve">Virium centralium maximus uſus eſt in Philoſophia Na-
              <lb/>
            turali; </s>
            <s xml:id="echoid-s3520" xml:space="preserve">Planetæ omnes in gyros moventur, & </s>
            <s xml:id="echoid-s3521" xml:space="preserve">plerique, ſi
              <lb/>
            non omnes, circa axes rotantur.</s>
            <s xml:id="echoid-s3522" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s3523" xml:space="preserve">Propoſitiones præcipuas circa haſce vires ſeligam & </s>
            <s xml:id="echoid-s3524" xml:space="preserve">ex-
              <lb/>
            plicabo, hasque Experimentis confirmabo, & </s>
            <s xml:id="echoid-s3525" xml:space="preserve">in ſcholiis huic
              <lb/>
            capiti adjectis ipſas demonſtrabo.</s>
            <s xml:id="echoid-s3526" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s3527" xml:space="preserve">Præmittenda vero eſt Machinarum deſcriptio; </s>
            <s xml:id="echoid-s3528" xml:space="preserve">quibus hæc
              <lb/>
            Experimenta peraguntur.</s>
            <s xml:id="echoid-s3529" xml:space="preserve"/>
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        <div xml:id="echoid-div539" type="section" level="1" n="166">
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            <emph style="sc">Machina</emph>
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          <p style="it">
            <s xml:id="echoid-s3530" xml:space="preserve">Qua Experimenta de viribus centralibus inſtituuntur.</s>
            <s xml:id="echoid-s3531" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s3532" xml:space="preserve">A eſt orbis ligneus diametri circiter duorum pedum cum
              <lb/>
              <note position="left" xlink:label="note-0140-02" xlink:href="note-0140-02a" xml:space="preserve">348.</note>
            ſemiſſe; </s>
            <s xml:id="echoid-s3533" xml:space="preserve">hujus fectio verticalis datur in Fig. </s>
            <s xml:id="echoid-s3534" xml:space="preserve">2.</s>
            <s xml:id="echoid-s3535" xml:space="preserve">, in qua a a i-
              <lb/>
              <note position="left" xlink:label="note-0140-03" xlink:href="note-0140-03a" xml:space="preserve">TAB. XIV.
                <lb/>
              fig 1. & 2.</note>
            pſius orbis ſectionem repræſentat, g h ſectionem ſuſtentacu-
              <lb/>
            li tornati, orbi perpendiculariter in centro adjuncti; </s>
            <s xml:id="echoid-s3536" xml:space="preserve">conſtat
              <lb/>
            hoc ex duabus partibus ſeparatis in D, quæ junguntur qua-
              <lb/>
            tuor cylindris ferreis tenuibus, quorum extremitates annu-
              <lb/>
            lis ex eodem metallo cohærent.</s>
            <s xml:id="echoid-s3537" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s3538" xml:space="preserve">Pars ſuperior ſuſtentaculi ſulco circumdatur cc; </s>
            <s xml:id="echoid-s3539" xml:space="preserve">& </s>
            <s xml:id="echoid-s3540" xml:space="preserve">cylin-
              <lb/>
            drice excavatur in f g, cujus foraminis diameter eſt trium
              <lb/>
            partium quartarum unius pollicis.</s>
            <s xml:id="echoid-s3541" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s3542" xml:space="preserve">Totius Machinæ pes datur in C, eſt ſolidiſſimus: </s>
            <s xml:id="echoid-s3543" xml:space="preserve">ab u-
              <lb/>
            na parte ei applicatur orbis A, ubi quadrum ſuperius pe-
              <lb/>
            dis C excavatur, ut recipiat ſuſtentaculum orbis. </s>
            <s xml:id="echoid-s3544" xml:space="preserve">Cum hoc
              <lb/>
            quadro firmiter connectitur caput ligneum F, (Fig. </s>
            <s xml:id="echoid-s3545" xml:space="preserve">3.) </s>
            <s xml:id="echoid-s3546" xml:space="preserve">cu-
              <lb/>
            jus angulus G, in g (fig. </s>
            <s xml:id="echoid-s3547" xml:space="preserve">1.) </s>
            <s xml:id="echoid-s3548" xml:space="preserve">videri poteſt.</s>
            <s xml:id="echoid-s3549" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s3550" xml:space="preserve">Capiti huic ſuperimponitur lamina ferrea R quæ ipſi li-
              <lb/>
            gno inſeritur & </s>
            <s xml:id="echoid-s3551" xml:space="preserve">cum hoc, ope cochlearum, quales in s, s,
              <lb/>
            delineatæ dantur, firmiter connectitur, Cum lamina R
              <lb/>
            cohæret alia r circa verticulum mobilem, ita ut laminæ
              <lb/>
            ambæ inter ſe recipiant ſuſtentaculum tabulæ dum ipſæ ſul-
              <lb/>
            co c c (fig. </s>
            <s xml:id="echoid-s3552" xml:space="preserve">2.) </s>
            <s xml:id="echoid-s3553" xml:space="preserve">inſeruntur, in quo caſu cuſpis Z foramina Z, Z,
              <lb/>
            trajicit.</s>
            <s xml:id="echoid-s3554" xml:space="preserve"/>
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