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

List of thumbnails

< >
121
121 (107) 		122
122 (108)
123
123 (109) 		124
124 (110)
125
125 (111) 		126
126 (112)
127
127 (113) 		128
128 (114)
129
129 (115) 		130
130 (116)
< >
page |< < (116) of 795 > >|
    <echo version="1.0RC">
      <text xml:lang="la" type="free">
        <div xml:id="echoid-div78" type="section" level="1" n="78">
          <p>
            <s xml:id="echoid-s2829" xml:space="preserve">
              <pb o="116" file="0130" n="130" rhead="DISSERTATIO"/>
            Magnetis & </s>
            <s xml:id="echoid-s2830" xml:space="preserve">Verſorii intercedit, quam ut accurate obſervaripoſſit,
              <lb/>
            operam impendi, ut detegerem proportionem inter tempora, quibus
              <lb/>
            motus dabatur, & </s>
            <s xml:id="echoid-s2831" xml:space="preserve">diſtantias horum corporum a ſe invicem, ut per-
              <lb/>
            nicitatem virium Magneticarum invenirem, ſed nimia celeritas pro-
              <lb/>
            hibuit hucuſque, quo minus aliquid accurati determinem: </s>
            <s xml:id="echoid-s2832" xml:space="preserve">pulcrius
              <lb/>
            tamen hoc rude tentamen mihi viſum fuit, quam ut ſilentio preme-
              <lb/>
            retur.</s>
            <s xml:id="echoid-s2833" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div79" type="section" level="1" n="79">
          <head xml:id="echoid-head87" xml:space="preserve">EXPERIMENTUM LIX.</head>
          <p>
            <s xml:id="echoid-s2834" xml:space="preserve">Si Verſorium & </s>
            <s xml:id="echoid-s2835" xml:space="preserve">Magnes in eâ ponantur diſtantia, ut in ſe agant,
              <lb/>
            Verſorium a polo Magnetis attrahitur, cuſpide alterius nominis
              <lb/>
            verſus polum directa; </s>
            <s xml:id="echoid-s2836" xml:space="preserve">tum juxta priorem ponatur alius Magnes, in
              <lb/>
            codem plano horizontali, & </s>
            <s xml:id="echoid-s2837" xml:space="preserve">in eâdem â Verſorio diſtantiâ, polis
              <lb/>
            cognominibus eandem plagam ſpectantibus, dirigetur Acus verſus me-
              <lb/>
            dium interſtitii inter ambos relicti Magnetes, in quo loco eſt cen-
              <lb/>
            trum virium Magnetum, haud aliter fere ac centrum gravitatis in-
              <lb/>
            ter duo ſejuncta corpora intermedium jacet. </s>
            <s xml:id="echoid-s2838" xml:space="preserve">Si autem Magnetis,
              <lb/>
            juxta priorem poſiti, polus ſit alterius nominis, Verſorium dirigi-
              <lb/>
            tur, ut ſit perpendiculare ad amborum Magnetum axes, tum enim
              <lb/>
            cuſpis illius æque attrahitur ab uno, quam repellitur ab altero ſe-
              <lb/>
            cundi Magnetis polo.</s>
            <s xml:id="echoid-s2839" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div80" type="section" level="1" n="80">
          <head xml:id="echoid-head88" xml:space="preserve">EXPERIMENTUM LX.</head>
          <p>
            <s xml:id="echoid-s2840" xml:space="preserve">Tab. </s>
            <s xml:id="echoid-s2841" xml:space="preserve">3. </s>
            <s xml:id="echoid-s2842" xml:space="preserve">fig. </s>
            <s xml:id="echoid-s2843" xml:space="preserve">1. </s>
            <s xml:id="echoid-s2844" xml:space="preserve">Tabulæ A B, quæ ope rotæ P velociſſime cir-
              <lb/>
            cumverti poterat, impoſitus alligatuſque fuit Magnes C, ita ut axis
              <lb/>
            perpendiculariter inſiſteret horizonti, polus autem Boreus ſurſum
              <lb/>
            ſpectaret: </s>
            <s xml:id="echoid-s2845" xml:space="preserve">tum Verſorium Magneticum alteri impoſitum fuit menſæ
              <lb/>
            immobili; </s>
            <s xml:id="echoid-s2846" xml:space="preserve">atque in eodem plano horizontali cum A B, tegebatur
              <lb/>
            campana vitrea, ne a motu aëris per circumgyrationem tabulæ A
              <lb/>
            B, turbaretur, admovebatur Verſorium tam prope Magneti C, ut
              <lb/>
            intra ejus virtutis ſphæram hæreret: </s>
            <s xml:id="echoid-s2847" xml:space="preserve">Verſorio quieſcente, tabula A B
              <lb/>
            velociter circumagebatur, in principio viſa fuit Acus oſeillari nunc
              <lb/>
            dextrorſum, nunc ſiniſtrorſum, primum ſitum relinquendo parum-
              <lb/>
            per: </s>
            <s xml:id="echoid-s2848" xml:space="preserve">ſed aucta velocitate tabulæ A B, quantum fieri potuit, Ver-
              <lb/>
            ſorium manſit fixum in ſuo meridiano, neque ullum motus minimi
              <lb/>
            dedit ſignum.</s>
            <s xml:id="echoid-s2849" xml:space="preserve"/>
          </p>
        </div>
      </text>
    </echo>
Impressum