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

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          <pb o="3" file="0033" n="33" rhead="MATHEMATICA, LIB. I. CAP. I."/>
        </div>
        <div xml:id="echoid-div30" type="section" level="1" n="22">
          <head xml:id="echoid-head55" xml:space="preserve">
            <emph style="sc">Regula</emph>
          2.</head>
          <p style="it">
            <s xml:id="echoid-s470" xml:space="preserve">Effectuum Naturalium ejuſdem generis eaſdem eſſe cauſas.
              <lb/>
            </s>
            <s xml:id="echoid-s471" xml:space="preserve">
              <note position="right" xlink:label="note-0033-01" xlink:href="note-0033-01a" xml:space="preserve">7.</note>
            </s>
          </p>
        </div>
        <div xml:id="echoid-div32" type="section" level="1" n="23">
          <head xml:id="echoid-head56" xml:space="preserve">
            <emph style="sc">Regula</emph>
          3.</head>
          <p style="it">
            <s xml:id="echoid-s472" xml:space="preserve">Qualitates corporum, quæ intendi & </s>
            <s xml:id="echoid-s473" xml:space="preserve">remitti nequeunt, quæ-
              <lb/>
              <note position="right" xlink:label="note-0033-02" xlink:href="note-0033-02a" xml:space="preserve">8.</note>
            que corporibus omnibus competunt, in quibus experimenta in-
              <lb/>
            ſtituere licet, pro qualitatibus corporum univer ſorum haben-
              <lb/>
            das eſſe.</s>
            <s xml:id="echoid-s474" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div34" type="section" level="1" n="24">
          <head xml:id="echoid-head57" xml:space="preserve">CAPUT II.</head>
          <head xml:id="echoid-head58" style="it" xml:space="preserve">De Corpore in genere.</head>
          <p>
            <s xml:id="echoid-s475" xml:space="preserve">QUod primum in corpore conſiderandum venit eſt exten-
              <lb/>
              <note position="right" xlink:label="note-0033-03" xlink:href="note-0033-03a" xml:space="preserve">9.</note>
            ſio.</s>
            <s xml:id="echoid-s476" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s477" xml:space="preserve">Extenſio quid ſit, nemoignorat, hujus idea fere ſem-
              <lb/>
            per menti noſtræ obverſatur, & </s>
            <s xml:id="echoid-s478" xml:space="preserve">eſt ſimpliciſſima; </s>
            <s xml:id="echoid-s479" xml:space="preserve">unde, li-
              <lb/>
            cet diſtinctiſſima ſit, verbis tamen nullis deſcribi poteſt.</s>
            <s xml:id="echoid-s480" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s481" xml:space="preserve">Omne corpus eſt extenſum, ſublata corporis extenſione
              <lb/>
            integrum tollitur corpus.</s>
            <s xml:id="echoid-s482" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s483" xml:space="preserve">Omne extenſum non eſt corpus, in quo vero corpus a
              <lb/>
            ſpatio differat, non poteſt determinari, niſi prius examinatis
              <lb/>
            aliis corporis proprietatibus.</s>
            <s xml:id="echoid-s484" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s485" xml:space="preserve">Secunda quæ corpus conſideranti ſeſe offert eſt ſoliditas.
              <lb/>
            </s>
            <s xml:id="echoid-s486" xml:space="preserve">
              <note position="right" xlink:label="note-0033-04" xlink:href="note-0033-04a" xml:space="preserve">10.</note>
            Corpus, omne aliud corpus ex loco a ſe occupato excludit,
              <lb/>
            & </s>
            <s xml:id="echoid-s487" xml:space="preserve">corpora fluidiſſima æque ac maxime dura ea proprietate
              <lb/>
            gaudent.</s>
            <s xml:id="echoid-s488" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s489" xml:space="preserve">Tertia corporis proprietas eſt diviſibilitas, eo quod cor-
              <lb/>
              <note position="right" xlink:label="note-0033-05" xlink:href="note-0033-05a" xml:space="preserve">11.</note>
            pus eſt extenſum, etiam eſt diviſibile. </s>
            <s xml:id="echoid-s490" xml:space="preserve">Extenſio enim alia
              <lb/>
            extenſione minor ſemper poteſt concipi, unde videmus in
              <lb/>
            omni extenſione partes dari, quæ partes in corpore a ſein-
              <lb/>
            vicem poſſunt ſeparari; </s>
            <s xml:id="echoid-s491" xml:space="preserve">quia</s>
          </p>
          <p>
            <s xml:id="echoid-s492" xml:space="preserve">Corpus quarta proprietate præditum eſt, quod poſſit de
              <lb/>
              <note position="right" xlink:label="note-0033-06" xlink:href="note-0033-06a" xml:space="preserve">12.</note>
            loco in locum transferri, unde corpus mobile dicitur. </s>
            <s xml:id="echoid-s493" xml:space="preserve">Vi
              <lb/>
            autem inſitâ in motu perſeverat.</s>
            <s xml:id="echoid-s494" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s495" xml:space="preserve">Quando nullum datur obſtaculum, corpus ictui minimo
              <lb/>
              <note position="right" xlink:label="note-0033-07" xlink:href="note-0033-07a" xml:space="preserve">13.</note>
            cedit, major tamen vis requiritur ad corpus movendum ma-
              <lb/>
            jori celeritate quam minori, & </s>
            <s xml:id="echoid-s496" xml:space="preserve">ad movendum corpus ma-
              <lb/>
            jus quam minus, ſi æqualis fuerit velocitas; </s>
            <s xml:id="echoid-s497" xml:space="preserve">vis etiam </s>
          </p>
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