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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[31.] EXPERIMENTUM XXIII.
Page: 69 (55)
[32.] EXPERIMENTUM XXIV.
Page: 71 (57)
[33.] EXPERIMENTUM XXV.
Page: 74 (60)
[34.] EXPERIMENTUM. XXVI.
Page: 80 (66)
[35.] EXPERIMENTUM XXVII.
Page: 83 (69)
[36.] EXPERIMENTUM. XXVIII.
Page: 83 (69)
[37.] EXPERIMENTUM XXIX.
Page: 85 (71)
[38.] EXPERIMENTUM XXX.
Page: 90 (76)
[39.] PROCESSUS PRIMUS.
Page: 91 (77)
[40.] PROCESSUS SECUNDUS.
Page: 92 (78)
[41.] PROCESSUS TERTIUS.
Page: 93 (79)
[42.] PROCESSUS QUARTUS.
Page: 94 (80)
[43.] PROCESSUS QUINTUS.
Page: 97 (83)
[44.] PROCESSUS SEXTUS.
Page: 99 (85)
[45.] PROCESSUS SEPTIMUS.
Page: 100 (86)
[46.] PROCESSUS OCTAVUS.
Page: 101 (87)
[47.] PROCESSUS NONUS.
Page: 102 (88)
[48.] PROCESSUS DECIMUS.
Page: 103 (89)
[49.] PROCESSUS UNDECIMUS.
Page: 104 (90)
[50.] PROCESSUS DUODECIMUS.
Page: 106 (92)
[51.] EXPERIMENTUM XXXI.
Page: 110 (96)
[52.] EXPERIMENTUM XXXII.
Page: 115 (101)
[53.] EXPERIMENTUM XXXIII.
Page: 115 (101)
[54.] EXPERIMENTUM XXXIV.
Page: 116 (102)
[55.] EXPERIMENTUM. XXXV.
Page: 117 (103)
[56.] EXPERIMENTUM. XXXVI.
Page: 117 (103)
[57.] EXPERIMENTUM XXXVII.
Page: 118 (104)
[58.] EXPERIMENTUM XXXVIII.
Page: 118 (104)
[59.] EXPERIMENTUM XXXIX.
Page: 119 (105)
[60.] EXPERIMENTUM XL.
Page: 120 (106)
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          <p>
            <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-
              <lb/>
            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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