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

Table of Notes

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            <s xml:id="echoid-s2911" xml:space="preserve">
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            particulæ ſuperior erit polus cognominis poli Magnetici, & </s>
            <s xml:id="echoid-s2912" xml:space="preserve">quia
              <lb/>
            poli cognomines Magnetum ſemet fugant, hic quoque a polo Ma-
              <lb/>
            gnetis fugari concipiendus eſt: </s>
            <s xml:id="echoid-s2913" xml:space="preserve">promoveatur nunc Magnes infra
              <lb/>
            particulam ſiniſtrorſum, adeoque ſecum trahere nitetur eam parti-
              <lb/>
            culæ extremitatem, quæ plano eſt contigua, ſed hæc ab aſperitate
              <lb/>
            plani impeditur ſequi, manetque in priori loco, polus vero Ma-
              <lb/>
            gnetis fugans ſuperiorem particulæ extremitatem, oblique in eam
              <lb/>
            agit, & </s>
            <s xml:id="echoid-s2914" xml:space="preserve">quidem dextrorſum, quare pelletur dextrorſum, obliquum
              <lb/>
            accipiendo ſitum; </s>
            <s xml:id="echoid-s2915" xml:space="preserve">promoto tandem ulterius Magnete, ut in eam par-
              <lb/>
            ticulam non amplius agat, hæc cadet ſua gravitate dextrorſum: </s>
            <s xml:id="echoid-s2916" xml:space="preserve">quod
              <lb/>
            in una conceptum fuit particula, obtinet in omnibus, idcirco moto
              <lb/>
            Magnete ſiniſtrorſum infra planum, erigetur prius perpendiculariter
              <lb/>
            ipſi impoſita Scobs, delapſura dextrorſum poſtea.</s>
            <s xml:id="echoid-s2917" xml:space="preserve"/>
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            <s xml:id="echoid-s2918" xml:space="preserve">Cum vero Magnes ſupra Scobem & </s>
            <s xml:id="echoid-s2919" xml:space="preserve">planum poſitus promovetur,
              <lb/>
            erigitur quoque quælibet particula perpendiculariter, cujus ſuperior
              <lb/>
            extremitas fit polus alterius nominis ac polus Magnetis, quem ſpe-
              <lb/>
            ctat, a quo proinde attrahitur, cujus motum ſequitur, & </s>
            <s xml:id="echoid-s2920" xml:space="preserve">ideo moto
              <lb/>
            Magnete ſupra Scobem ſiniſtrorſum, cadet Scobs ſiniſtrorſum,
              <lb/>
            eventu plane contrario, quam cum Magnes infra Scobem promo-
              <lb/>
            vebatur.</s>
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          <head xml:id="echoid-head94" xml:space="preserve">EXPERIMENTUM LXVI.</head>
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            <s xml:id="echoid-s2922" xml:space="preserve">Tab. </s>
            <s xml:id="echoid-s2923" xml:space="preserve">6. </s>
            <s xml:id="echoid-s2924" xml:space="preserve">fig. </s>
            <s xml:id="echoid-s2925" xml:space="preserve">3. </s>
            <s xml:id="echoid-s2926" xml:space="preserve">Si circa Magnetem A B, impoſitum plano, ſpar-
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            gatur Limatura Ferri, aut potius pulvis Indicus, ad aliquam uſque
              <lb/>
            latitudinem, leviterque planum concutiatur, diſponitur pulvis in
              <lb/>
            ſeries ordinatas oblongas, intercapedinem relinquentes, quales
              <lb/>
            figura exhibet; </s>
            <s xml:id="echoid-s2927" xml:space="preserve">in quibus duæ ſunt plagæ A A, B B, plerumque
              <lb/>
            rectilineas ſeries formantes, ſed aliæ circa utrumque Magnetis latus,
              <lb/>
            incurvantur, uti D D, C C. </s>
            <s xml:id="echoid-s2928" xml:space="preserve">quæ curvarum perpetuo ampliatarum,
              <lb/>
            prout plus â Magnete diſtant, ſunt portiones: </s>
            <s xml:id="echoid-s2929" xml:space="preserve">omnes ſeries non
              <lb/>
            æquale intervallum inter ſe relinquunt, ſed prope Magnetem pau-
              <lb/>
            lum arctius: </s>
            <s xml:id="echoid-s2930" xml:space="preserve">quod circiter adæquat {6/10} lineæ: </s>
            <s xml:id="echoid-s2931" xml:space="preserve">poll. </s>
            <s xml:id="echoid-s2932" xml:space="preserve">Rhen intervalla non
              <lb/>
            penitus ſunt ſine pulvere interſperſo, adhærente ſeriei alicui, & </s>
            <s xml:id="echoid-s2933" xml:space="preserve">excur-
              <lb/>
            rente irregulariter uſque ad ſeriem vicinam, id tamen plus obtinet in
              <lb/>
            majoria Magnete diſtantia, quam prope ipſum: </s>
            <s xml:id="echoid-s2934" xml:space="preserve">Optime hæc </s>
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