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

< >
[271.] XIII. Problema. Triangulum O E V, Amſtelodamum, Leida, Trajectum.
Page: 396 (382)
[272.] XIV. Proelema Triangulum E I V, Leida, Harlemum, Trajectum.
Page: 397 (383)
[273.] XV. Problema Triangulum E I O. Leyda, Harlemum, Amſtelo-damum.
Page: 398 (384)
[274.] XVI. Problema Triangulum I O ?. Harlemum, Amſtelodamum, Alcmaria.
Page: 398 (384)
[275.] XVII. Problema. Triangulum E O ?. Leida, Amſtelodamum, Alcmaria.
Page: 399 (385)
[276.] XVIII. Problema. Triangulum M V L, Oude-Watera, Trajectum, Bommelia.
Page: 399 (385)
[277.] XIX. Problema Triangulum ? V L. Dordracum, Trajectum, Bommelia.
Page: 400 (386)
[278.] XX. Problema Triangulum E V L. Leida, Trajectum, Bommelia.
Page: 400 (386)
[279.] XXI. Problema. Triangulum ? E L, Alcmaria, Leida, Bommelia.
Page: 401 (387)
[280.] XXII. Problema. Triangulum R L V, Dordracum, Bommelia, Breda.
Page: 401 (387)
[281.] XXIII. Problema. Triangulum R S F. Dordracum, Gouda, Rotterodamum.
Page: 401 (387)
[282.] XXIV. Problema. Triangulum R T F, Dordracum, Willemſtadium, Rotterodamum.
Page: 402 (388)
[283.] XXV. Problema. Triangulum R T V. Dordracum, Willemſtadium, Breda.
Page: 402 (388)
[284.] XXVI. Problema. Triangulum T V Q. Willemſtadium, Breda, Berga-ad-Somum.
Page: 403 (389)
[285.] XXVII. Problema. Triangulum R V Q Dordracum, Breda, Berga-ad-Somum.
Page: 404 (390)
[286.] XXVIII. Problema. Triangulum V L Q Breda, Bommelia, Berga-ad-Somum.
Page: 404 (390)
[287.] XXIX. Problema. Datis quadrilateri L R V Q lateribus & diagonio R V, abſque Triangulorum canonibus invenire reliquam diagonium Q L.
Page: 405 (391)
[288.] XXX. Problema Triangulum E I ?, Leida, Harlemum, Alcmaria.
Page: 406 (392)
[289.] XXXI. Problema. Triangulum E V ?. Leida, Trajectum, Alcmaria.
Page: 407 (393)
[290.] XXXII. Problema. Triangulum V L ?. Trajectum, Bommelia, Alcmaria.
Page: 407 (393)
[291.] XXXIII. Problema. Triangulum Q L ?. Berga-ad-Somum, Bommelia, Alcmaria.
Page: 408 (394)
[292.] CAPUT IX. Quantitas unius gradus in maximo Terræ circulo demum definita.
Page: 409 (395)
[293.] PARS ALTERA. DE MAGNITUDINE TERRÆ SECUNDUM MENSURAM ULTIMAM SNELLII ET NOSTRAM. Problema I. Tab. XIV. fig. 2. Triangulum i e a connectens Leydam, Douſæ arcem, locumque inter hanc & Voor-ſchooten aſſumtum.
Page: 412 (398)
[294.] Problema II. Triangulum a e m, nectens Douſæ arcem, pagum Soeterwoudam, locumque inter illam & Voor ſchoten aſſumtum eundem ac in Probl. I.
Page: 412 (398)
[295.] Problema III. Triangulum i e m, jungens Leidam, Douſæ arcem & Soeterwoudam.
Page: 413 (399)
[296.] IV. Problema. Triangulum a i u, jungens Leidam, Voorſchoten, locumque aſſumtum in Problemate I.
Page: 414 (400)
[297.] V. Problema. Diſtantia inter Leidam & Voor ſchoten alio modo quæſita, ope Trianguli A E I nectentis Leidam, Soeterwou-dam & Voorſchoten Tab. XIV. fig. 4.
Page: 414 (400)
[298.] Problema VI. Tab. XIV. fig. 2. Triangulum, imu, conjungens Leidam, Soeterwoudam & Voorſchoten.
Page: 415 (401)
[299.] Problema VII. Diſtantia inter Soeterwoudam & Voor ſchooten alio modo quæſita.
Page: 415 (401)
[300.] Problema VIII. Tab. XIV. fig. 3. Triangulum A E I, Leida, Soeterwouda, Waſſenaria.
Page: 416 (402)
< >
page |< < (235) of 795 > >|
    <echo version="1.0RC">
      <text xml:lang="la" type="free">
        <div xml:id="echoid-div134" type="section" level="1" n="134">
          <pb o="235" file="0249" n="249" rhead="DE MAGNETE."/>
        </div>
        <div xml:id="echoid-div135" type="section" level="1" n="135">
          <head xml:id="echoid-head144" xml:space="preserve">CAPUT QUARTUM.</head>
          <p style="it">
            <s xml:id="echoid-s5552" xml:space="preserve">De actione Ferri, donati viribus Magneticis, in aliud Ferrum,
              <lb/>
            ſive purum, ſive viribus Magneticis imprægnatum.</s>
            <s xml:id="echoid-s5553" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s5554" xml:space="preserve">Quoniam Ferrum, viribus Magneticis donatum, non differt a
              <lb/>
            Magneteipſo, ſive vim attractricem, quam in alterum exercet
              <lb/>
            Ferrum, ſive directricem, ſive communicantem virtutem
              <lb/>
            cum alio ſpectemus, ſuperſedere potuiſſem examini Ferri, quate-
              <lb/>
            nus attrahendo aliud, virtutem ſuam Magneticam oſtendit: </s>
            <s xml:id="echoid-s5555" xml:space="preserve">attamen
              <lb/>
            non licuit Magnetem omnibus tractare modis, quibus Ferrum agi-
              <lb/>
            tari poteſt; </s>
            <s xml:id="echoid-s5556" xml:space="preserve">non enim licuit lapidem inflectere in quamlibet formam,
              <lb/>
            nec unum circa alterum intorquere, nec prolongare, ipſum per fo-
              <lb/>
            ramen trahendo, nec cudendo figuram immutare, quibus inſlexio-
              <lb/>
            nibus & </s>
            <s xml:id="echoid-s5557" xml:space="preserve">mutationibus ductile metallum ſubjicitur; </s>
            <s xml:id="echoid-s5558" xml:space="preserve">igitur reſtabat
              <lb/>
            explorandum, quomodo virtus Magnetica ſe in Ferro haberet, quod
              <lb/>
            aliis diverſiſque tractatur & </s>
            <s xml:id="echoid-s5559" xml:space="preserve">torquetur modis, quam hucuſque exa-
              <lb/>
            minari Magnes potuit.</s>
            <s xml:id="echoid-s5560" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div136" type="section" level="1" n="136">
          <head xml:id="echoid-head145" xml:space="preserve">EXPERIMENTUM CX.</head>
          <p>
            <s xml:id="echoid-s5561" xml:space="preserve">Scriptum video apud nonnullos Philoſophos, vim Magneticam
              <lb/>
            ex lamina Chalybea decreſcere, ſi ipſi alia tenuia, & </s>
            <s xml:id="echoid-s5562" xml:space="preserve">non grandia
              <lb/>
            ferramenta, nunquam ſuper Magnete ducta, affricentur; </s>
            <s xml:id="echoid-s5563" xml:space="preserve">ſed vim in-
              <lb/>
            tegram permanere, applicatis corporibus majoribus, quorum nimia
              <lb/>
            moles, ſpretis quaſi tenuioris laminæ Magneticis viribus, nihil
              <lb/>
            earum ſecum abriperet: </s>
            <s xml:id="echoid-s5564" xml:space="preserve">Hæc ſententia ſi vera foret, haud parum
              <lb/>
            quaſſaret ea, quæ de Magnete in Capite Secundo. </s>
            <s xml:id="echoid-s5565" xml:space="preserve">Experimento.
              <lb/>
            </s>
            <s xml:id="echoid-s5566" xml:space="preserve">XXXVIII. </s>
            <s xml:id="echoid-s5567" xml:space="preserve">diximus, Magnetem ſcilicet nunquam aliquid ſuarum
              <lb/>
            amittere virium, quamvis ſexcenta ſuper ipſo ducta brevi tempore
              <lb/>
            fuiſſent ferramenta, tenuia, brevia, craſſa ſive longa fuerint; </s>
            <s xml:id="echoid-s5568" xml:space="preserve">hinc
              <lb/>
            ſuſpicabar non cum ſatis ſollicita attentione & </s>
            <s xml:id="echoid-s5569" xml:space="preserve">prudentia experimen-
              <lb/>
            tum cum Ferro fuiſſe captum, neque irritam me foviſſe ſuſpicio-
              <lb/>
            nem docuit experientia: </s>
            <s xml:id="echoid-s5570" xml:space="preserve">Lamina Chalybea 12 longa pollices, {3/4} </s>
          </p>
        </div>
      </text>
    </echo>
Impressum