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

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[251.] I. Problema Diſtantia pagorum Waſſenariæ & Soeterwoudæ.
Page: 380 (366)
[252.] II. Problema Diſtantia pagorum Soeterwoudæ & Voorſchoten.
Page: 380 (366)
[253.] III. Problema. Diſtantia pagorum Waſſenariæ & Voorſchoten.
Page: 380 (366)
[254.] IV. Problema Diſtantia pagorum Waſſenariæ & Voorſchoten, iterata Gæodæſia tentata & expreſſa.
Page: 381 (367)
[255.] V. Problema Diſtantia Hagæ & Leidæ.
Page: 382 (368)
[256.] VI. Problema Eadem diſtantia inter Hagam & Leidam aliter tentata.
Page: 383 (369)
[257.] CAPUT VIII. Omnium reliquorum locorum ad inſtitutam Gæodæſiam adbibitorum intervalla definita.
Page: 384 (370)
[258.] I. Problema. Triangulum A E S, Leida, Haga, Gouda.
Page: 384 (370)
[259.] II. Problema. Triangulum E S R. Leida, Gouda, Dordracum.
Page: 386 (372)
[260.] III. Problema. Triangulum E A R. Leida, Haga, Dordracum.
Page: 387 (373)
[261.] IV. Problema. Triangulum A E F. Haga, Leida, Roterodamum.
Page: 387 (373)
[262.] V. Problema. Triangulum E S F. Leida, Gouda, Rotterodamum.
Page: 388 (374)
[263.] VI. Problema. Triangulum E S V. Leida, Gouda, Trajectum.
Page: 388 (374)
[264.] VII. Problema. Triangulum E R V. Leida, Dordracum, Trajectum.
Page: 389 (375)
[265.] VIII. Problema. Triangulum E M V, Leida, Oude-Watera, Trajectum.
Page: 389 (375)
[266.] IX. Problema. Triangulum E M S. Leida, Oude Watera, Gouda.
Page: 390 (376)
[267.] IX. Problema. Diſtantia inter Oude Wateram & Montſortium quæſita.
Page: 393 (379)
[268.] X. Problema. Triangulum M X C, Oude-Watera, Woerda, Montfortium.
Page: 394 (380)
[269.] XI. Problema. Triangulum M X S. Oude-Watera, Woerda, Gouda.
Page: 395 (381)
[270.] XII. Problema. Triangulum A E I, Haga, Leida, Harlemum.
Page: 396 (382)
[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)
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          <head xml:id="echoid-head151" xml:space="preserve">EXPERIMENTUM CXVI.</head>
          <p>
            <s xml:id="echoid-s5685" xml:space="preserve">Sed oportebit demonſtrare, quomodo Ferrum vi Magneticâ im-
              <lb/>
            prægnatum agat in Scobem Ferri, aut in pulverem Indicum circa
              <lb/>
            ipſum conſperſum; </s>
            <s xml:id="echoid-s5686" xml:space="preserve">a ſimpliciſſimo Experimento initium capiamus:
              <lb/>
            </s>
            <s xml:id="echoid-s5687" xml:space="preserve">Tab. </s>
            <s xml:id="echoid-s5688" xml:space="preserve">3. </s>
            <s xml:id="echoid-s5689" xml:space="preserve">fig. </s>
            <s xml:id="echoid-s5690" xml:space="preserve">3. </s>
            <s xml:id="echoid-s5691" xml:space="preserve">Lamina Chalybea A C D B, 12 longa pollices; </s>
            <s xml:id="echoid-s5692" xml:space="preserve">de-
              <lb/>
            ſcripta in Experimento CXXII, ſuper Magnete ducta, impoſita fuit
              <lb/>
            plano vitreo ſpeculo; </s>
            <s xml:id="echoid-s5693" xml:space="preserve">erat lamina formæ parallelopipedæ, circum-
              <lb/>
            quaque ſparſa fuit Scobs ferrea vel arena Indica, rara, ut melius
              <lb/>
            ſeries obſervarentur, tum ſpeculo leviter concuſſo, in ſeries ordi-
              <lb/>
            natus fuit circumjectus pulvis, quales figura repræſentat; </s>
            <s xml:id="echoid-s5694" xml:space="preserve">diſtabant
              <lb/>
            omnes â ſe inæquali intervallo; </s>
            <s xml:id="echoid-s5695" xml:space="preserve">quæ è regione A & </s>
            <s xml:id="echoid-s5696" xml:space="preserve">B extremita-
              <lb/>
            tum erant, in eadem recta cum longitudine laminæ jacebant, qua-
              <lb/>
            les demonſtrant AE, BF: </s>
            <s xml:id="echoid-s5697" xml:space="preserve">ſeries ambientes utramque extremitatem
              <lb/>
            laminæ A & </s>
            <s xml:id="echoid-s5698" xml:space="preserve">B, ad diſtantiam ſesqui pollicis, hoc eſt ad C & </s>
            <s xml:id="echoid-s5699" xml:space="preserve">D,
              <lb/>
            etiam in rectis lineis extendebantur, quamvis extrema ambierint,
              <lb/>
            veluti oſtendunt GG, HH. </s>
            <s xml:id="echoid-s5700" xml:space="preserve">Media autem laminæ pars C D cinge-
              <lb/>
            batur a Scobe utrimque in curvilineas ſeries ordinata, quæ non vi-
              <lb/>
            dentur eſſe circulorum arcus, ſed aliarum curvarum portiones.</s>
            <s xml:id="echoid-s5701" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s5702" xml:space="preserve">Angulis laminæ excuſſis ita, ut utraque extremitas capite ro-
              <lb/>
            tundo terminaretur, circumſperſa arena Virginienſis in ſeries priori
              <lb/>
            ſimiles ordinabatur, quas repræſentat Tab. </s>
            <s xml:id="echoid-s5703" xml:space="preserve">4. </s>
            <s xml:id="echoid-s5704" xml:space="preserve">fig. </s>
            <s xml:id="echoid-s5705" xml:space="preserve">1. </s>
            <s xml:id="echoid-s5706" xml:space="preserve">Extremitati-
              <lb/>
            bus autem deſinentibus in Cuſpides acutas, paulum diverſo diſpo-
              <lb/>
            nebantur ſeries modo, quas in fig. </s>
            <s xml:id="echoid-s5707" xml:space="preserve">2. </s>
            <s xml:id="echoid-s5708" xml:space="preserve">Tab. </s>
            <s xml:id="echoid-s5709" xml:space="preserve">4. </s>
            <s xml:id="echoid-s5710" xml:space="preserve">conſpicimus. </s>
            <s xml:id="echoid-s5711" xml:space="preserve">Ex-
              <lb/>
            tremitatibus vero bifidis factis, uti in fig. </s>
            <s xml:id="echoid-s5712" xml:space="preserve">3. </s>
            <s xml:id="echoid-s5713" xml:space="preserve">ordinatæ iterum
              <lb/>
            aliter fuerunt ſeries; </s>
            <s xml:id="echoid-s5714" xml:space="preserve">quæ ex quolibet angulo, veluti ex centro
              <lb/>
            circuli exporrigebantur rectæ, hinc verſus ſe inclinantes in hiulco
              <lb/>
            inter utramque cuſpidem ejuſdem lateris, non tamen ſeſe invi-
              <lb/>
            cem attingebant; </s>
            <s xml:id="echoid-s5715" xml:space="preserve">medium laminæ, uti ante, a rotundis ambie-
              <lb/>
            batur ſeriebus.</s>
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          <p>
            <s xml:id="echoid-s5717" xml:space="preserve">Poſitâ ante oculos figura 3. </s>
            <s xml:id="echoid-s5718" xml:space="preserve">Tab. </s>
            <s xml:id="echoid-s5719" xml:space="preserve">3, laminam quadrangularem
              <lb/>
            exhibente, exploratum fuit quomodo hæc lamina pulverem, cui
              <lb/>
            immittebatur, attraheret: </s>
            <s xml:id="echoid-s5720" xml:space="preserve">lateri o, p, tenuiſſimo maxima quan-
              <lb/>
            titas adhæſit, & </s>
            <s xml:id="echoid-s5721" xml:space="preserve">quidem imprimis adhæſit angulis o, p, atque
              <lb/>
            longiſſimo termino interjacenti angulis o, p, planæ ſuperſiciei ali-
              <lb/>
            quid, ſed parum.</s>
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