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 contents

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[61.] EXPERIMENTUM. XLI.
Page: 120 (106)
[62.] EXPERIMENTUM. XLII.
Page: 121 (107)
[63.] EXPERIMENTUM XLIII.
Page: 122 (108)
[64.] EXPERIMENTUM XLIV.
Page: 122 (108)
[65.] EXPERIMENTUM. XLV.
Page: 122 (108)
[66.] EXPERIMENTUM XLVI.
Page: 123 (109)
[67.] EXPERIMENTUM XLVII.
Page: 124 (110)
[68.] EXPERIMENTUM XLVIII.
Page: 124 (110)
[69.] EXPERIMENTUM XLIX.
Page: 124 (110)
[70.] EXPERIMENTUM L.
Page: 125 (111)
[71.] EXPERIMENTUM LI.
Page: 126 (112)
[72.] EXPERIMENTUM LII.
Page: 126 (112)
[73.] EXPERIMENTUM. LIII.
Page: 126 (112)
[74.] EXPERIMENTUM. LIV.
Page: 127 (113)
[75.] EXPERIMENTUM LV.
Page: 127 (113)
[76.] EXPERIMENTUM LVI.
Page: 128 (114)
[77.] EXPERIMENTUM LVII.
Page: 128 (114)
[78.] EXPERIMENTUM LVIII.
Page: 129 (115)
[79.] EXPERIMENTUM LIX.
Page: 130 (116)
[80.] EXPERIMENTUM LX.
Page: 130 (116)
[81.] EXPERIMENTUM LXI.
Page: 131 (117)
[82.] EXPERIMENTUM LXII.
Page: 131 (117)
[83.] EXPERIMENTUM. LXIII.
Page: 131 (117)
[84.] EXPERIMENTUM LXIV.
Page: 132 (118)
[85.] EXPERIMENTUM LXV.
Page: 132 (118)
[86.] EXPERIMENTUM LXVI.
Page: 134 (120)
[87.] EXPERIMENTUM LXVII.
Page: 135 (121)
[88.] EXPERIMENTUM LXVIII.
Page: 136 (122)
[89.] EXPERIMENTUM LXIX.
Page: 136 (122)
[90.] EXPERIMENTUM LXX.
Page: 137 (123)
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            <s xml:id="echoid-s2868" xml:space="preserve">Hoc ſubtiliſſime primus obſervavit Whiſtonus: </s>
            <s xml:id="echoid-s2869" xml:space="preserve">Ferrum igitur,
              <lb/>
            quod ſuper Magnete ductum fuit, & </s>
            <s xml:id="echoid-s2870" xml:space="preserve">vires accepit, hæret quaſi in
              <lb/>
            centro virium ad aliquam diſtantiam diffuſarum, & </s>
            <s xml:id="echoid-s2871" xml:space="preserve">vires Magnetis
              <lb/>
            & </s>
            <s xml:id="echoid-s2872" xml:space="preserve">Ferri ſibi obviam quaſi eunt, atque in intermedio ſpatio in ſe a-
              <lb/>
            gunt; </s>
            <s xml:id="echoid-s2873" xml:space="preserve">niſi Ferrum, vi donatum, mobilius ſit altero, & </s>
            <s xml:id="echoid-s2874" xml:space="preserve">ideo ab exi-
              <lb/>
            lioribus Magnetis viribus in diſtantia majori commoveri poſſit.</s>
            <s xml:id="echoid-s2875" xml:space="preserve"/>
          </p>
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          <head xml:id="echoid-head92" xml:space="preserve">EXPERIMENTUM LXIV.</head>
          <p>
            <s xml:id="echoid-s2876" xml:space="preserve">Si Magnes homogeneæ ſubſtantiæ undiquaque obruatur limatura
              <lb/>
            Ferri tenuiſſima, vel pulvere Indico, nullum fere erit in ſuperſicie
              <lb/>
            punctum, cui attracta limatura non adhæret: </s>
            <s xml:id="echoid-s2877" xml:space="preserve">majori tamen copia adhæ-
              <lb/>
            ret angulis & </s>
            <s xml:id="echoid-s2878" xml:space="preserve">polis, quam lateralibus planiſque Magnetis partibus; </s>
            <s xml:id="echoid-s2879" xml:space="preserve">at-
              <lb/>
            trahit igitur omne punctum Magnetis Ferrum, etiamſi non æque valide.</s>
            <s xml:id="echoid-s2880" xml:space="preserve"/>
          </p>
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          <head xml:id="echoid-head93" xml:space="preserve">EXPERIMENTUM LXV.</head>
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            <s xml:id="echoid-s2881" xml:space="preserve">Si limatura Ferri rarè, & </s>
            <s xml:id="echoid-s2882" xml:space="preserve">æquabiliter ſpargatur ſupra corporis non
              <lb/>
            admodum denſi ſuperficiem planam (ne quidem Ferro excepto) & </s>
            <s xml:id="echoid-s2883" xml:space="preserve">
              <lb/>
            Magnes directe infra id corpus ponatur, alterutro polo ſpectante
              <lb/>
            ſurſum, primo plurimæ particulæ limaturæ conjungentur in formam
              <lb/>
            oblongæ Acus, illæ perpendiculariter ſupra ſuperficiem erigentur,
              <lb/>
            quæ directe e regione poli Magnetis ſunt: </s>
            <s xml:id="echoid-s2884" xml:space="preserve">moto Magnete dextror-
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            ſum ſecundum longitudinem plani ſuſtinentis, cadunt omnes partes
              <lb/>
            limaturæ ſiniſtrorſum; </s>
            <s xml:id="echoid-s2885" xml:space="preserve">redeunte Magnete ſiniſtrorſum, eriguntur
              <lb/>
            partes, caduntque dextrorſum: </s>
            <s xml:id="echoid-s2886" xml:space="preserve">idem ſpectatur effectus, quicun-
              <lb/>
            que Magnetis polus ſurſum fuerit converſus. </s>
            <s xml:id="echoid-s2887" xml:space="preserve">Poſt itus reditusque
              <lb/>
            aliquot Magnetis infra planum ſuſtinens ſcobem, ordinatur lima-
              <lb/>
            tura in ſeries oblongas.</s>
            <s xml:id="echoid-s2888" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2889" xml:space="preserve">Si pars Magnetis lateralis plano obverſa, ſed infra illud promo-
              <lb/>
            veatur dextrorſum, vel ſiniſtrorſum, etiam erigitur limatura, ca-
              <lb/>
            ditque contraria directione, quam qua Magnes movetur, cadit tamen
              <lb/>
            paulum oblique, magis nempe a polis utrimque attracta, quam a
              <lb/>
            meridiano Magnetis.</s>
            <s xml:id="echoid-s2890" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2891" xml:space="preserve">Si aliquoties infra planum Magnetem, alterutro polo ſurſum ſpe-
              <lb/>
            ctante, dextrorſum & </s>
            <s xml:id="echoid-s2892" xml:space="preserve">ſiniſtrorſum promoveris, ut limatura ſit in </s>
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