Musschenbroek, Petrus van, Physicae experimentales, et geometricae de magnete, tuborum capillarium vitreorumque speculorum attractione, magnitudine terrae, cohaerentia corporum firmorum dissertationes: ut et ephemerides meteorologicae ultraiectinae

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        <div xml:id="echoid-div20" type="section" level="1" n="20">
          <pb o="31" file="0045" n="45" rhead="DE MAGNETE."/>
          <p>
            <s xml:id="echoid-s696" xml:space="preserve">Sed apparet intuenti hanc repulſionis tabulam, quod nec certa
              <lb/>
            nec determinabilis proportio inter vires & </s>
            <s xml:id="echoid-s697" xml:space="preserve">diſtantias detur, uti nec
              <lb/>
            in attractione inveniri poterat.</s>
            <s xml:id="echoid-s698" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s699" xml:space="preserve">Attamen multo major eſt attractio quam repulſio; </s>
            <s xml:id="echoid-s700" xml:space="preserve">cum enim in
              <lb/>
            immediato contactu fuerit attractio æqualis 340 granis, repulſio
              <lb/>
            tantum fuit æqualis 44 granis, & </s>
            <s xml:id="echoid-s701" xml:space="preserve">comparando Experimentum terti-
              <lb/>
            um cum hoc, facile patet quanta diverſitas obſervetur.</s>
            <s xml:id="echoid-s702" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div21" type="section" level="1" n="21">
          <head xml:id="echoid-head28" xml:space="preserve">EXPERIMENTUM XV.</head>
          <p>
            <s xml:id="echoid-s703" xml:space="preserve">Volui præterea obſervare, an vires repellentes utriusque poli ejus-
              <lb/>
            dem Magnetis forent æquales, aut quomodo variarent; </s>
            <s xml:id="echoid-s704" xml:space="preserve">itaque Ma-
              <lb/>
            guetem, qui poſtremo inſerviit experimento & </s>
            <s xml:id="echoid-s705" xml:space="preserve">ex Bilance pendebat,
              <lb/>
            converti, ut alter polus deorſum ſpectaret, converti quoque
              <lb/>
            Magnetem rotundum in tabula poſitum, tumque obſervationes notavi
              <lb/>
            ſequentes:</s>
            <s xml:id="echoid-s706" xml:space="preserve"/>
          </p>
          <note position="right" xml:space="preserve">
            <lb/>
          Ad diſtantiam \\ Linearum. # fuit repulſio granorum.
            <lb/>
          12 # 30
            <lb/>
          11 # 32
            <lb/>
          10 # 32
            <lb/>
          9 # 33
            <lb/>
          8 # 34
            <lb/>
          7 # 36
            <lb/>
          6 # 36
            <lb/>
          5 # 34
            <lb/>
          4 # 32
            <lb/>
          3 # 28
            <lb/>
          2 # 27
            <lb/>
          1 # 25
            <lb/>
          0 # 13
            <lb/>
          </note>
          <p>
            <s xml:id="echoid-s707" xml:space="preserve">Ecce eventum, adeo admirandum, ut dubitaverim in initio, an qui-
              <lb/>
            dem Experimenta rite inſtituta eſſent, ſed repetens eadem, atque ma-
              <lb/>
            jori attendens cura, omnino easdem inveni repulſiones; </s>
            <s xml:id="echoid-s708" xml:space="preserve">Sunt hæ ad
              <lb/>
            diſtantiam 12 linearum magnæ, increscunt usque ad diſtantiam 7 </s>
          </p>
        </div>
      </text>
    </echo>
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