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 handwritten notes

< >
< >
page |< < (64) of 795 > >|
    <echo version="1.0RC">
      <text xml:lang="la" type="free">
        <div xml:id="echoid-div33" type="section" level="1" n="33">
          <p>
            <s xml:id="echoid-s1503" xml:space="preserve">
              <pb o="64" file="0078" n="78" rhead="DISSERTATIO"/>
            fecte immobilis, Magnete ſupra vel infra B D C poſito: </s>
            <s xml:id="echoid-s1504" xml:space="preserve">ſola ferrea
              <lb/>
            Acus movetur, poſito Magnete in A. </s>
            <s xml:id="echoid-s1505" xml:space="preserve">Nemo, qui ope microſcopio-
              <lb/>
            rum corporum ſoliditatem examinavit, hic ſtatuet omnia metalla
              <lb/>
            eſſe adeo poroſa, ut per ea Effluvia liberrime tranſeant, Ferrum con-
              <lb/>
            tra eſſe ſolidius, vix poroſum, atque excipere omnem Effluviorum
              <lb/>
            actionem in ſe, ideo tantum hoc moveri, quieſcentibus reliquis. </s>
            <s xml:id="echoid-s1506" xml:space="preserve">Ne-
              <lb/>
            que poni poteſt Effluviorum A E vim eſſe nimis imbecillem ad Acum
              <lb/>
            B D C ex Cupro, aliove metallo factam, commovendam, cum vi æ-
              <lb/>
            quali plurimorum granorum ponderi Acus ſimilis ferrea, poſita in
              <lb/>
            eodem loco, a Magnete movetur.</s>
            <s xml:id="echoid-s1507" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1508" xml:space="preserve">Præterea ſi Effluvia ex Magnete A egrediantur directione A E,
              <lb/>
            occurrantque Acui ferreæ B D C, nonne eam a Magnete repellent
              <lb/>
            ulterius K verſus, hâc enim determinatione moventur, eâdem igi-
              <lb/>
            tur Acum promovebunt; </s>
            <s xml:id="echoid-s1509" xml:space="preserve">verum ſi Acus ex ferro puro, nondum im-
              <lb/>
            buto vi Magnetica, ponatur ſupra Magnetem A, non ab eo repel-
              <lb/>
            letur recedendo, ſed attrahetur accedendo; </s>
            <s xml:id="echoid-s1510" xml:space="preserve">hic acceſſus igitur po-
              <lb/>
            tius Effluvia poſtulat ingredientia Magnetem, delataque motu
              <lb/>
            E A, quæ autem accedunt ad aliquod corpus, Effluvia illius dici
              <lb/>
            nequeunt; </s>
            <s xml:id="echoid-s1511" xml:space="preserve">Quamobrem ex hiſce concludi poteſt Philoſophos non
              <lb/>
            ſatis attente omnia conſideraſſe, qui Magnetis vires ab Effluviis cor-
              <lb/>
            poreis deduxerunt.</s>
            <s xml:id="echoid-s1512" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1513" xml:space="preserve">Quicunque autem ſupponet Fluidum aliquod extus ambiens ac-
              <lb/>
            cedenſque ad Magnetem eſſe effectuum memoratorum cauſam, etiam
              <lb/>
            non carebit inextricabilibus difficultatibus: </s>
            <s xml:id="echoid-s1514" xml:space="preserve">Hoc enim Fluidum ſit
              <lb/>
            quoque corporeum, & </s>
            <s xml:id="echoid-s1515" xml:space="preserve">feratur directione E A Magnetem verſus,
              <lb/>
            tum illud corpus quodcunque ſolidum B D C poſitum in parvâ a Ma-
              <lb/>
            gnete diſtantiâ, ad ipſum propellet æque Cuprum ac Ferrum,
              <lb/>
            illud enim fluidum neceſſario occurret eodem modo partibus Cupri
              <lb/>
            ſolidis, quo Ferri: </s>
            <s xml:id="echoid-s1516" xml:space="preserve">Hoc tamen non probat experientia, manente
              <lb/>
            Acu cuprea B D C perfecte immota, ſed ferreâ attracta verſus A.</s>
            <s xml:id="echoid-s1517" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1518" xml:space="preserve">Neque explicatio Gaſſendi aliquem locum habet, dicentis:
              <lb/>
            </s>
            <quote>
              <s xml:id="echoid-s1519" xml:space="preserve">Ra-
                <lb/>
              dios Magneticos non pellicere marmor, cum tamen ferrum pelli-
                <lb/>
              ciunt; </s>
              <s xml:id="echoid-s1520" xml:space="preserve">imo neque feſtucas, aliave leviora interpoſita; </s>
              <s xml:id="echoid-s1521" xml:space="preserve">quoniam præ-
                <lb/>
              ter ferrum Magnetemque, cætera corpora non habent neque ra-
                <lb/>
              dios reciprocos, neque eam pororum, meatuumve diſpoſitio-
                <lb/>
              nem, propter quam & </s>
              <s xml:id="echoid-s1522" xml:space="preserve">radios refringant, & </s>
              <s xml:id="echoid-s1523" xml:space="preserve">ab iis ſtringantur.</s>
            </quote>
          </p>
        </div>
      </text>
    </echo>
Impressum