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-div80" type="section" level="1" n="80">
          <pb o="117" file="0131" n="131" rhead="DE MAGNETE."/>
        </div>
        <div xml:id="echoid-div81" type="section" level="1" n="81">
          <head xml:id="echoid-head89" xml:space="preserve">EXPERIMENTUM LXI.</head>
          <p>
            <s xml:id="echoid-s2850" xml:space="preserve">Omni apparatu præcedentis Experimenti manente eodem, Ver-
              <lb/>
            ſorium altius fuit poſitum, ut eſſet in plano ſupra polum Magne-
              <lb/>
            tis C, quorſum Acus illico dirigebatur, inclinata quoque a viribus
              <lb/>
            attrahentis poli deorſum; </s>
            <s xml:id="echoid-s2851" xml:space="preserve">fuit Verſorium ita poſitum, ut ex meri-
              <lb/>
            diano ſuo egreſſum fueritper attractionem Magnetis: </s>
            <s xml:id="echoid-s2852" xml:space="preserve">hoc lapide C
              <lb/>
            velociſſime circumacto ope rotæ P, manſit Acus inclinata, quieta,
              <lb/>
            & </s>
            <s xml:id="echoid-s2853" xml:space="preserve">directa, ut modo ante: </s>
            <s xml:id="echoid-s2854" xml:space="preserve">Quare hæc velociſſima circumgy-
              <lb/>
            ratio non impedivit, quominus Magnes in Verſorium egerit.</s>
            <s xml:id="echoid-s2855" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div82" type="section" level="1" n="82">
          <head xml:id="echoid-head90" xml:space="preserve">EXPERIMENTUM LXII.</head>
          <p>
            <s xml:id="echoid-s2856" xml:space="preserve">Idem Magnes binorum præcedentium Experimentorum C tabu-
              <lb/>
            læ A B ita alligatus fuit, ut ejus ambo poli, ſive axis, jaceret in
              <lb/>
            plano horizontali A C B. </s>
            <s xml:id="echoid-s2857" xml:space="preserve">Verſorium in alia poſitum fuit tabula im-
              <lb/>
            mobili, ita ut in eodem producto plano horizontali A C B foret:
              <lb/>
            </s>
            <s xml:id="echoid-s2858" xml:space="preserve">Magnete velociter circumacto, cuſpis Verſorii Borea inverteba-
              <lb/>
            tur, directa verſus Magnetem, manebatque in hoc ſitu immobilis,
              <lb/>
            quamdiu Magnes velociſſime circumvolvebatur, ſed eo tardius mo-
              <lb/>
            to oſcillabat Verſorium: </s>
            <s xml:id="echoid-s2859" xml:space="preserve">idem erat effectus poſito Verſorio ad Bo-
              <lb/>
            ream, Ortum, Meridiem vel Occaſum Magnetis, cuſpis enim Borea
              <lb/>
            ſemper verſus Magnetem trahebatur.</s>
            <s xml:id="echoid-s2860" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2861" xml:space="preserve">Hoc Experimentum iterum docet, circumgyrationem Magnetis
              <lb/>
            velociſſimam non impedire, quominus Acus attrahatur: </s>
            <s xml:id="echoid-s2862" xml:space="preserve">hujus cuſpis
              <lb/>
            Borea ad Magnetem dirigebatur, quia polus Meridionalis Magne-
              <lb/>
            tis, cui Verſorium affrictum fuit, in hac regione majores attrahendi
              <lb/>
            vires habet, quam Boreus.</s>
            <s xml:id="echoid-s2863" xml:space="preserve"/>
          </p>
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        <div xml:id="echoid-div83" type="section" level="1" n="83">
          <head xml:id="echoid-head91" xml:space="preserve">EXPERIMENTUM. LXIII.</head>
          <p>
            <s xml:id="echoid-s2864" xml:space="preserve">Magnes attrahit Ferrum purum, & </s>
            <s xml:id="echoid-s2865" xml:space="preserve">id quod eſt imprægnatum vi
              <lb/>
            a Magnete, agit in hoc ad majorem diſtantiam, quam in illud:
              <lb/>
            </s>
            <s xml:id="echoid-s2866" xml:space="preserve">ſunt diſtantiæ, in quibus actio incipit ſpectari, Magnetis in Ferrum
              <lb/>
            imprægnatum, ad eas in Ferrum non imprægnatum, circiter uti 5
              <lb/>
            ad 2.</s>
            <s xml:id="echoid-s2867" xml:space="preserve"/>
          </p>
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