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

Page concordance

< >
Scan Original
531 517
532 518
533 519
534 520
535 521
536 522
537 523
538 524
539 525
540 526
541 527
542 528
543 529
544 530
545 531
546 532
547 533
548 534
549 535
550 536
551
552
553
554 537
555 538
556 539
557 540
558 541
559 542
560 543
< >
page |< < (495) of 795 > >|
    <echo version="1.0RC">
      <text xml:lang="la" type="free">
        <div xml:id="echoid-div410" type="section" level="1" n="410">
          <p>
            <s xml:id="echoid-s11575" xml:space="preserve">
              <pb o="495" file="0509" n="509" rhead="CORPORUM FIRMORUM."/>
            deret: </s>
            <s xml:id="echoid-s11576" xml:space="preserve">Supervacaneus videbitur Geometris noſter labor, imptimis
              <lb/>
            cum demonſtravimus in Propoſitione VIII. </s>
            <s xml:id="echoid-s11577" xml:space="preserve">duorum corporum cylin-
              <lb/>
            dricorum ejusdem materiæ, diverſam craſſitiem habentium, Cohæ-
              <lb/>
            rentiam fore in ratione craſſitierum: </s>
            <s xml:id="echoid-s11578" xml:space="preserve">quod veriſſimum eſt, & </s>
            <s xml:id="echoid-s11579" xml:space="preserve">in-
              <lb/>
            ſtar Axiomatis ponendum, ſi corpora, quibus vis infertur, ut fran-
              <lb/>
            gantur, maneant æque craſſa; </s>
            <s xml:id="echoid-s11580" xml:space="preserve">ſed an ea, quæ cedunt interim ob
              <lb/>
            flexilitatem, & </s>
            <s xml:id="echoid-s11581" xml:space="preserve">attenuantur, qualia ſunt Metalla, eidem Legi ſub-
              <lb/>
            jiciantur, mihi non ſatis liquido conſtabat; </s>
            <s xml:id="echoid-s11582" xml:space="preserve">de eo dubitaſſe poſtea
              <lb/>
            non pœnituit, cum Experientia evicerit, hic aliquid latere, acceden-
              <lb/>
            te Cohærentia quidem utcunque ad craſſitierum proportionem, non
              <lb/>
            tamen accurate. </s>
            <s xml:id="echoid-s11583" xml:space="preserve">Verum prius apparatum Experimentorum exacte
              <lb/>
            deſcribam: </s>
            <s xml:id="echoid-s11584" xml:space="preserve">Præparata fuerunt ex quolibet Metallo fila quatuor,
              <lb/>
            craſſiſſimi diameter erat {1/10} pollicis Rhenolandici, hoc in poſte-
              <lb/>
            rum inſigniam littera A. </s>
            <s xml:id="echoid-s11585" xml:space="preserve">Secundum, cujus craſſities minor erat,
              <lb/>
            habebat baſin vel craſſitiem, quæ ad eam in A fuit exacte uti 3 ad
              <lb/>
            4 hanc craſſitiem vocabo B. </s>
            <s xml:id="echoid-s11586" xml:space="preserve">Tertii fili craſſities ſive baſis erat ad
              <lb/>
            eam B uti 2 ad 3. </s>
            <s xml:id="echoid-s11587" xml:space="preserve">hanc craſſitiem vocabo C. </s>
            <s xml:id="echoid-s11588" xml:space="preserve">Quarti fili craſſities
              <lb/>
            erat ad eam C uti 1 and 2. </s>
            <s xml:id="echoid-s11589" xml:space="preserve">hanc vocabo D. </s>
            <s xml:id="echoid-s11590" xml:space="preserve">erant igitur baſes, ſive
              <lb/>
            craſſities filorum, uti 4, 3, 2, 1.</s>
            <s xml:id="echoid-s11591" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s11592" xml:space="preserve">Fila omnia craſſitiei A ducta fuerunt per idem foramen lamellæ
              <lb/>
            indurati Chalybis inflictum, ut accuratiſſime forent æque craſſa:
              <lb/>
            </s>
            <s xml:id="echoid-s11593" xml:space="preserve">ita per aliud foramen ducta fuerunt fila omnia B. </s>
            <s xml:id="echoid-s11594" xml:space="preserve">per aliud omnia
              <lb/>
            C. </s>
            <s xml:id="echoid-s11595" xml:space="preserve">per aliud omnia D.</s>
            <s xml:id="echoid-s11596" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s11597" xml:space="preserve">Quoniam omnia Metalla majorem rigiditatem acquirunt cum ita
              <lb/>
            ducuntur per hæc foramina, igni carbonum ligneorum puriſſimo-
              <lb/>
            rum immitebantur Aurum, Argentum, Cuprum, Ferrum, & </s>
            <s xml:id="echoid-s11598" xml:space="preserve">le-
              <lb/>
            viter candefacta, emollita fuerunt tam æquabiliter quantum fieri po-
              <lb/>
            teſt, cavendo ſimul ne ſuperficies ſcorias contraheret, atque ita te-
              <lb/>
            nuius fieret filum: </s>
            <s xml:id="echoid-s11599" xml:space="preserve">ut hæc ope Machinæ divulſoriæ examinaren-
              <lb/>
            tur, confecti fuerunt duo ferrei unci. </s>
            <s xml:id="echoid-s11600" xml:space="preserve">Tab. </s>
            <s xml:id="echoid-s11601" xml:space="preserve">XX. </s>
            <s xml:id="echoid-s11602" xml:space="preserve">fig. </s>
            <s xml:id="echoid-s11603" xml:space="preserve">3. </s>
            <s xml:id="echoid-s11604" xml:space="preserve">plusquam
              <lb/>
            duplo longiores & </s>
            <s xml:id="echoid-s11605" xml:space="preserve">craſſiores quam hic depinguntur, quorum capi-
              <lb/>
            tibus A, B inflicta erant foramina quadrata, quibus conveniebant
              <lb/>
            pinnæ fieret, formæ & </s>
            <s xml:id="echoid-s11606" xml:space="preserve">magnitudinis ac una proſtat in Tab. </s>
            <s xml:id="echoid-s11607" xml:space="preserve">XX.
              <lb/>
            </s>
            <s xml:id="echoid-s11608" xml:space="preserve">fig. </s>
            <s xml:id="echoid-s11609" xml:space="preserve">4. </s>
            <s xml:id="echoid-s11610" xml:space="preserve">in medio erat cylindrica & </s>
            <s xml:id="echoid-s11611" xml:space="preserve">polita, circa quam partem fi-
              <lb/>
            lum metallicum circumvolvendum fuit, eratque ad latus pertuſum
              <lb/>
            foramine K, per quod filum transmittebatur, ut melius figi </s>
          </p>
        </div>
      </text>
    </echo>
Impressum