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

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            ſuntque corpora integras in formandis cavitatibus vires in-
              <lb/>
            ſitas amittere.</s>
            <s xml:id="echoid-s9496" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s9497" xml:space="preserve">Corpus autem in motu per fluidum non tantum trans-
              <lb/>
            fert particulas actione immediata, dum ſibi viam in-
              <lb/>
            ter has aperit, in qua translatione immediata cohæſionem
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            ſuperat; </s>
            <s xml:id="echoid-s9498" xml:space="preserve">ſed & </s>
            <s xml:id="echoid-s9499" xml:space="preserve">præterea ipſis particulis vim communicat,
              <lb/>
            qua poſt ceſlatam corporis actionem inter ſe moventur:
              <lb/>
            </s>
            <s xml:id="echoid-s9500" xml:space="preserve">reactio verò particularum, dum ipſis motus hicce impri-
              <lb/>
              <note position="left" xlink:label="note-0356-01" xlink:href="note-0356-01a" xml:space="preserve">896.</note>
            mitur, ex harum inertia oriunda, eſt ſecunda cauſa reſi-
              <lb/>
            ſtentiæ.</s>
            <s xml:id="echoid-s9501" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s9502" xml:space="preserve">Ut clarius concipiamus quæ reſiſtentias has ſpectant, ad
              <lb/>
            hoc attendere debemus. </s>
            <s xml:id="echoid-s9503" xml:space="preserve">Mutuam actionem corporis & </s>
            <s xml:id="echoid-s9504" xml:space="preserve">fluidi
              <lb/>
              <note position="left" xlink:label="note-0356-02" xlink:href="note-0356-02a" xml:space="preserve">897.</note>
            eandem eſſe, ſive corpus certa velocitate in fluido quieſcente
              <lb/>
            moveatur, ſive, quieſcente corpore, eâdem velocitate flui-
              <lb/>
            dum in hoc incurrat. </s>
            <s xml:id="echoid-s9505" xml:space="preserve">Actio enim hæc a motu reſpectivo
              <lb/>
            pendet, qui in hiſce caſibus non variat.</s>
            <s xml:id="echoid-s9506" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s9507" xml:space="preserve">Si nunc ſepoſitâ partium cohæſione ad motum fluidi at-
              <lb/>
            tendamus, & </s>
            <s xml:id="echoid-s9508" xml:space="preserve">hoc conſideremus dum in corpus quieſcens
              <lb/>
            incurrit, facile videbimus fluidi actionem eſſe preſſionem,
              <lb/>
              <note position="left" xlink:label="note-0356-03" xlink:href="note-0356-03a" xml:space="preserve">898.</note>
            particulaſque non impingere in corpus ſed juxta hoc, aut
              <lb/>
            juxta particulas fluidi, quæ corpus tangunt, moveri & </s>
            <s xml:id="echoid-s9509" xml:space="preserve">inter-
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            ea illas premere corpus, eodem modo ac corpus premit
              <lb/>
            planum ſuper quo movetur, quales preſſiones ex viribus
              <lb/>
            oriundas ſuperius indicavimus.</s>
            <s xml:id="echoid-s9510" xml:space="preserve"/>
          </p>
          <note symbol="*" position="left" xml:space="preserve">120. 321. 522.</note>
          <p>
            <s xml:id="echoid-s9511" xml:space="preserve">Preſſio hæc a vi inſitâ particularum oriunda, eſt ut hæc
              <lb/>
              <note position="left" xlink:label="note-0356-05" xlink:href="note-0356-05a" xml:space="preserve">899.</note>
            vis, id eſt ut quadratum velocitatis , augetur etiam ut
              <note symbol="*" position="left" xlink:label="note-0356-06" xlink:href="note-0356-06a" xml:space="preserve">477.</note>
            merus particularum determinato tempore incurrentium,
              <lb/>
            qui numerus velocitatis ſequitur proportionem: </s>
            <s xml:id="echoid-s9512" xml:space="preserve">tandem
              <lb/>
            preſſio de qua agimus ſequitur rationem temporis per quod
              <lb/>
            ſingulæ particulæ in determinatam partem ſuperficiei pre-
              <lb/>
            munt, quod tempus eo minus eſt quo velocitas eſt major,
              <lb/>
            ſequiturque rationem inverſam velocitatis; </s>
            <s xml:id="echoid-s9513" xml:space="preserve">quare ultimæ duæ
              <lb/>
            rationes ſeſe mutuo deſtruunt ſuperſtitemque habemus ſo-
              <lb/>
              <note position="left" xlink:label="note-0356-07" xlink:href="note-0356-07a" xml:space="preserve">900.</note>
            lam rationem quadrati velocitatis; </s>
            <s xml:id="echoid-s9514" xml:space="preserve">quam idcirco ſequitur
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            reſiſtentia ex ſecunda cauſa.</s>
            <s xml:id="echoid-s9515" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s9516" xml:space="preserve">Quomodo autem ambæ reſiſtentiæ cauſæ ſimul agant
              <lb/>
              <note position="left" xlink:label="note-0356-08" xlink:href="note-0356-08a" xml:space="preserve">901.</note>
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