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

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            <s xml:id="echoid-s1397" xml:space="preserve">
              <pb o="61" file="0075" n="75" rhead="DE MAGNETE."/>
            VII. </s>
            <s xml:id="echoid-s1398" xml:space="preserve">convenientiam Attractionis in æqualibus diſtantiis videmus hic
              <lb/>
            dari magnam: </s>
            <s xml:id="echoid-s1399" xml:space="preserve">quod autem nonnullos attinet numeros, qui paulum
              <lb/>
            diſcrepant, & </s>
            <s xml:id="echoid-s1400" xml:space="preserve">variam dari Attractionem hinc inde oſtenderent, ſcien-
              <lb/>
            dum eſt, nunquam tam accurate in totidem Experimentis dirigi poſſe
              <lb/>
            Magnetem ſuſpenſum ex fune, ut eædem plagæ ſuperioris ſpectent
              <lb/>
            eaſdem inferioris Magnetis, unde oritur quædam Attractionis di-
              <lb/>
            verſitas, malui autem candide obſervationes cum ſuis Anomaliis
              <lb/>
            apponere, quam nonnullas corrigere aut immutare, quod ſi enim
              <lb/>
            aliquis eadem repetat Experimenta, facile obfervabit, non poſſe
              <lb/>
            dexteritate quâcunque eadem reperiri in omnibus diſtantiis Magne-
              <lb/>
            tum a ſe invicem Attractio, quia converſo per evolutionem funis
              <lb/>
            H G vel tantillum Magnete H ex priori ſitu, extemplo alia vis at-
              <lb/>
            tractrix N O verſus obſervatur.</s>
            <s xml:id="echoid-s1401" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1402" xml:space="preserve">Liquet igitur ex his Experimentis Metalla non remorari vires Ma-
              <lb/>
            gneticas, neque eas imminuere aut turbare: </s>
            <s xml:id="echoid-s1403" xml:space="preserve">ſed poſſent Metalla eſſe
              <lb/>
            reſpectu Effluviorum Magneticorum, quod ſunt vitra, & </s>
            <s xml:id="echoid-s1404" xml:space="preserve">diaphana
              <lb/>
            corpora reſpectu Lucis, quæ hujus maximam per ſe tranſmittunt
              <lb/>
            copiam, idcirco cum aliis corporibus ſolidis ſimilia inſtituenda ad-
              <lb/>
            hucdum eſſe Experimenta ratus fui, hæc enim poſſent eſſe ita com-
              <lb/>
            parata cum Effluviis, quemadmodum opaca ſunt reſpectu Lucis: </s>
            <s xml:id="echoid-s1405" xml:space="preserve">In-
              <lb/>
            cluſus fuit Magnes capſulæ ex terra porcellanica Chinenſi confectæ;
              <lb/>
            </s>
            <s xml:id="echoid-s1406" xml:space="preserve">poſtea incluſus fuit capſulæ vitreæ, atque in hoc duplici tentami-
              <lb/>
            ne eodem modo vires exploratæ fuerunt ac in Experimento præce-
              <lb/>
            denti, ſed utraque capſula nullam viribus Magneticis intulit moram,
              <lb/>
            decrementum nullum; </s>
            <s xml:id="echoid-s1407" xml:space="preserve">æque facile hæ per utramque tranſiverunt,
              <lb/>
            ac ſi ambo Magnetes abſque ullo intermedio obſtaculo ſe ſpectaſſent. </s>
            <s xml:id="echoid-s1408" xml:space="preserve">
              <lb/>
            Immiſſus tandem fuit Magnes recipienti Boyleano, atque ex eo
              <lb/>
            omnis, quantum fieri poteſt ope Antliæ Pneumaticæ, eductus
              <lb/>
            aër elaſticus, alter Magnes, & </s>
            <s xml:id="echoid-s1409" xml:space="preserve">extra recipiens ex Libra noſtra ſu-
              <lb/>
            ſpenſus, ad varias demiſſus diſtantias, iiſdem attrahebatur viribus
              <lb/>
            ac in primo Experimento, poſitis ambobus Magnetibus in aëre aper-
              <lb/>
            to: </s>
            <s xml:id="echoid-s1410" xml:space="preserve">Novi equidem magnum Boyleum parumper diverſum eventum
              <lb/>
            ſimilis Experimenti adnotaſſe in Continuat. </s>
            <s xml:id="echoid-s1411" xml:space="preserve">1. </s>
            <s xml:id="echoid-s1412" xml:space="preserve">Exper. </s>
            <s xml:id="echoid-s1413" xml:space="preserve">Phyſ. </s>
            <s xml:id="echoid-s1414" xml:space="preserve">Mech. </s>
            <s xml:id="echoid-s1415" xml:space="preserve">
              <lb/>
            Exper. </s>
            <s xml:id="echoid-s1416" xml:space="preserve">31. </s>
            <s xml:id="echoid-s1417" xml:space="preserve">qui Magnetem oneravit tanta Ferri quantitate ac trahere
              <lb/>
            potuit, tum ex unco recipientis ſuſpendit, aërem Antliâ eduxit; </s>
            <s xml:id="echoid-s1418" xml:space="preserve">
              <lb/>
            quo ſublato Magnes aliquamdiu Ferrum geſtavit, ſed poſtea demiſit
              <unsure/>
            </s>
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