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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          <pb o="108" file="0122" n="122" rhead="DISSERTATIO"/>
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        <div xml:id="echoid-div63" type="section" level="1" n="63">
          <head xml:id="echoid-head71" xml:space="preserve">EXPERIMENTUM XLIII.</head>
          <p>
            <s xml:id="echoid-s2637" xml:space="preserve">Poſſunt fragmenta Magnetum varia conjungi in unam maſſam,
              <lb/>
            quæ multas vires exercebit, modo inter & </s>
            <s xml:id="echoid-s2638" xml:space="preserve">circum partes fundatur
              <lb/>
            plumbum: </s>
            <s xml:id="echoid-s2639" xml:space="preserve">ſunt fragmenta hoc ordine locanda, ut Poli ejuſdem
              <lb/>
            nominis ſpectent eandem partem: </s>
            <s xml:id="echoid-s2640" xml:space="preserve">tum enim diſpoſita ſunt,
              <lb/>
            quemadmodum a Natura partes locatæ fuiſſent magni Ma-
              <lb/>
            gnetis, ars hic imitata Naturam e parvis componit majorem molem:
              <lb/>
            </s>
            <s xml:id="echoid-s2641" xml:space="preserve">Dechales aliique plurimi hoc noverunt & </s>
            <s xml:id="echoid-s2642" xml:space="preserve">experientia comproba-
              <lb/>
            runt.</s>
            <s xml:id="echoid-s2643" xml:space="preserve"/>
          </p>
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        <div xml:id="echoid-div64" type="section" level="1" n="64">
          <head xml:id="echoid-head72" xml:space="preserve">EXPERIMENTUM XLIV.</head>
          <p>
            <s xml:id="echoid-s2644" xml:space="preserve">Nonnunquam contingit, ut grandis Magnetica moles non oſten-
              <lb/>
            dat multum virium attrahentium, cum eadem in fragmenta plurima
              <lb/>
            diſſecta, aliquam exiguam portionem exhibeat magnis viribus do-
              <lb/>
            natam, a qua, in medio Lapide, tanquam a corde molis, vis omnis
              <lb/>
            pependit, quæ diſperſa per totam majorem maſſam, aut egredi
              <lb/>
            impediebatur, vel quaquaverſum per totam molem diſtributa de-
              <lb/>
            bilitabat loca polaria.</s>
            <s xml:id="echoid-s2645" xml:space="preserve"/>
          </p>
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        <div xml:id="echoid-div65" type="section" level="1" n="65">
          <head xml:id="echoid-head73" xml:space="preserve">EXPERIMENTUM. XLV.</head>
          <p>
            <s xml:id="echoid-s2646" xml:space="preserve">Tab. </s>
            <s xml:id="echoid-s2647" xml:space="preserve">2. </s>
            <s xml:id="echoid-s2648" xml:space="preserve">fig. </s>
            <s xml:id="echoid-s2649" xml:space="preserve">4. </s>
            <s xml:id="echoid-s2650" xml:space="preserve">Supra Magnetem generoſum & </s>
            <s xml:id="echoid-s2651" xml:space="preserve">grandem A, ad
              <lb/>
            notabilem ab ipſo diſtantiam teneantur duæ claves ferreæ B, C,
              <lb/>
            nunquam antea vi Magnetica imprægnatæ, ex clave C ſuſpendetur
              <lb/>
            B K, imo hæ ambæ nonnunquam feruntur a tertia clavi D: </s>
            <s xml:id="echoid-s2652" xml:space="preserve">ſi ad
              <lb/>
            majorem diſtantiam a Magnete attollatur D, ſimul cum adhærentibus
              <lb/>
            ſibi clavibus C, B, tum ſolutæ a ſe mutuo decidunt: </s>
            <s xml:id="echoid-s2653" xml:space="preserve">Ad magnam
              <lb/>
            autem diſtantiam a Magnete removeri claves poſſunt, antequam
              <lb/>
            ſolvantur, quippe obſervavit Derhamus in Philoſ. </s>
            <s xml:id="echoid-s2654" xml:space="preserve">Tranſact. </s>
            <s xml:id="echoid-s2655" xml:space="preserve">N°.
              <lb/>
            </s>
            <s xml:id="echoid-s2656" xml:space="preserve">303. </s>
            <s xml:id="echoid-s2657" xml:space="preserve">Magnetem Societatis Regiæ Brittannicæ ſuſpendiſſe claves duas
              <lb/>
            ex ſe mutuo ad intervallum 8, 9, vel 10 pedum ab ipſo Ma-
              <lb/>
            gnete.</s>
            <s xml:id="echoid-s2658" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2659" xml:space="preserve">Obſervamus in hoc Experimento vim Magnetis attractricem </s>
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