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="122" file="0136" n="136" rhead="DISSERTATIO"/>
            parallelopipedo, vires ſuas transfudit per omnem hunc apparatum
              <lb/>
            uſque ad Limaturam ſuperiorem, quam erexit ut ante, unde non
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            modo vis tranſit per ſolidum Ferrum, ſed per interruptum, imo per
              <lb/>
            diſſolutam Scobem uſque in ſolidam maſſam.</s>
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          <head xml:id="echoid-head96" xml:space="preserve">EXPERIMENTUM LXVIII.</head>
          <p>
            <s xml:id="echoid-s2961" xml:space="preserve">Ponantur duo Magnetes juxta ſe invicem, ita ut amborum poli
              <lb/>
            cognomines ſurſum ſpectent, atque in eadem ſint altitudine, his impo-
              <lb/>
            natur ſpeculum vitreum, ſuper quo ſparſa Scobs ferrea ordinatur
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            in eaſdem ſeries formaſque, quas alteruter Magnes formaviſſet, niſi
              <lb/>
            quod in loco inter ambos polos medio, ſit centrum polare ſive cen-
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            trum virium, quod pro uno polo habendum eſt: </s>
            <s xml:id="echoid-s2962" xml:space="preserve">cæteroquin ad ma-
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            jorem quaquaverſum latitudinem vis diffuſa conſpicitur, ambobus
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            Magnetibus ſe mutuo adjuvantibus.</s>
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        <div xml:id="echoid-div89" type="section" level="1" n="89">
          <head xml:id="echoid-head97" xml:space="preserve">EXPERIMENTUM LXIX.</head>
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            <s xml:id="echoid-s2964" xml:space="preserve">Tab. </s>
            <s xml:id="echoid-s2965" xml:space="preserve">5. </s>
            <s xml:id="echoid-s2966" xml:space="preserve">fig. </s>
            <s xml:id="echoid-s2967" xml:space="preserve">1. </s>
            <s xml:id="echoid-s2968" xml:space="preserve">Duo Magnetes formæ Cubicæ, polis cognomini-
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            bus ſurſum ſpectantibus, quorum ſuperſicies ſint planæ & </s>
            <s xml:id="echoid-s2969" xml:space="preserve">lævigatæ,
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            jungantur ſecum invicem, ſed ita, ut inter ambos A & </s>
            <s xml:id="echoid-s2970" xml:space="preserve">B jaceat
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            C lamella tenuis, ferrea; </s>
            <s xml:id="echoid-s2971" xml:space="preserve">aſſeri iis impoſito inſpergatur limatura
              <lb/>
            Ferri, hæc diſponetur in ſeries, quas repræſentat figura, in qua
              <lb/>
            locus polaris fortiſſimi Magnetis B ſatis bene indicatur, cæteroquin
              <lb/>
            ſupra laminam C vix conſpicitur aliquid Scobis, & </s>
            <s xml:id="echoid-s2972" xml:space="preserve">ultra hunc lo-
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            cum omnia ſunt confuſo ordine poſita.</s>
            <s xml:id="echoid-s2973" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2974" xml:space="preserve">Differt hoc Experimentum a præcedenti, lamellâ C ferreâ inter-
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            poſitâ, quæ omnes has irregularitates attractionis producit, impe-
              <lb/>
            diendo quominus poli ambo ſe conjungant in medio, polum vi-
              <lb/>
            rium communem faciendo, ſed efficit ut vires utriuſque Magnetis
              <lb/>
            diſtinctæ maneant; </s>
            <s xml:id="echoid-s2975" xml:space="preserve">quia autem Magnes B præſtantior eſt quam A,
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            ad latera ſe ſpectantia vires ſuas fortius emittit, quæ tranſilientes
              <lb/>
            ſepimentum ferreum, ordinem Limaturæ ab A factum perturbant.</s>
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