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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          <pb o="123" file="0137" n="137" rhead="DE MAGNETE."/>
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        <div xml:id="echoid-div90" type="section" level="1" n="90">
          <head xml:id="echoid-head98" xml:space="preserve">EXPERIMENTUM LXX.</head>
          <p>
            <s xml:id="echoid-s2977" xml:space="preserve">Ambo iidem Magnetes juxta ſe, nihilo interpuncto, ponantur; </s>
            <s xml:id="echoid-s2978" xml:space="preserve">ſedut
              <lb/>
            poli alterni nominis ſurſum ſpectent, ſupra aſſerculum, illis impoſitum,
              <lb/>
            ſpargatur Scobs ferrea, hæc uti in Tab. </s>
            <s xml:id="echoid-s2979" xml:space="preserve">5. </s>
            <s xml:id="echoid-s2980" xml:space="preserve">fig. </s>
            <s xml:id="echoid-s2981" xml:space="preserve">1. </s>
            <s xml:id="echoid-s2982" xml:space="preserve">ambos polos mon-
              <lb/>
            ſtrabit ad A, a. </s>
            <s xml:id="echoid-s2983" xml:space="preserve">inter quos loco intermedio Scobs in curvilineam,
              <lb/>
            ab utraque parte convexam, figuram diſponetur, cæteroquin qua-
              <lb/>
            quaverſum vis rectà exiens Scobem quoque rectà conformat: </s>
            <s xml:id="echoid-s2984" xml:space="preserve">in-
              <lb/>
            termedia inter polos A, a, Scobis figura eſt eadem, ac ſi ambo Ma-
              <lb/>
            gnetes in eodem jacentes horizontali plano polis alterni nominis ſc
              <lb/>
            ſpectaſſent, non Scobis fit fuga, ſed amica attractio, a viribus
              <lb/>
            conſpirantium polorum excitata.</s>
            <s xml:id="echoid-s2985" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div91" type="section" level="1" n="91">
          <head xml:id="echoid-head99" xml:space="preserve">EXPERIMENTUM LXXI.</head>
          <p>
            <s xml:id="echoid-s2986" xml:space="preserve">Si Limatura Ferri infundatur tubis vitreis, atque arcte compin-
              <lb/>
            gatur, fit æque apta recipiendo vim Magnetis, quam Ferri fruſtum
              <lb/>
            unitum, ut docet ejus affrictio ad Magnetem, & </s>
            <s xml:id="echoid-s2987" xml:space="preserve">vis deinde explo-
              <lb/>
            rata, nam ab hoc non differt, niſi quod partes in maſſa ſunt ar-
              <lb/>
            ctius unitæ inter ſe, quam in Limatura attamen in Limatura com-
              <lb/>
            pactâ ſe bene contingunt: </s>
            <s xml:id="echoid-s2988" xml:space="preserve">ſi vero hæc Limatura commoveatur,
              <lb/>
            quaſſeturque, ut partes locum ſuum mutent, illico omnis earum vis
              <lb/>
            perit: </s>
            <s xml:id="echoid-s2989" xml:space="preserve">nam fricantur partes inter ſe diverſiſſimis directionibus; </s>
            <s xml:id="echoid-s2990" xml:space="preserve">quem-
              <lb/>
            admodum autem virtus ex Ferro auferebatur, cum contraria directio-
              <lb/>
            ne eidem polo Magnetis affricabatur quam ante, ita per ſimiles con-
              <lb/>
            trarias frictiones vis ex Limatura perit.</s>
            <s xml:id="echoid-s2991" xml:space="preserve"/>
          </p>
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        <div xml:id="echoid-div92" type="section" level="1" n="92">
          <head xml:id="echoid-head100" xml:space="preserve">EXPERIMENTUM LXXII.</head>
          <p>
            <s xml:id="echoid-s2992" xml:space="preserve">Conſtitit quidem huc uſque Magnetem attrahere Ferrum; </s>
            <s xml:id="echoid-s2993" xml:space="preserve">quia
              <lb/>
            autem Ferrum eſt maſſa admodum compoſita, ex Sulphure, Sale,
              <lb/>
            Terra, examinandum erat, quid inſit Ferro, quod attrahitur: </s>
            <s xml:id="echoid-s2994" xml:space="preserve">an
              <lb/>
            Sulphur, an Sal, an Terra, an autem hæc omnia ſimul poſtulen-
              <lb/>
            tur permixta?</s>
            <s xml:id="echoid-s2995" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2996" xml:space="preserve">Si Ferrum in Carbonibus foſſilibus vehementiſſime igniatur, </s>
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