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

< >
[121.] EXPERIMENTUM XCVIII.
Page: 202 (188)
[122.] DE ACU INCLINATORIA.
Page: 204 (190)
[123.] EXPERIMENTUM XCIX.
Page: 206 (192)
[124.] EXPERIMENTUM. C.
Page: 208 (194)
[125.] EXPERIMENTUM CI.
Page: 209 (195)
[126.] EXPERIMENTUM CII.
Page: 210 (196)
[127.] EXPERIMENTUM. CIII.
Page: 214 (200)
[128.] DISSERTATIO
Page: 216 (202)
[129.] EXPERIMENTUM CIV.
Page: 236 (222)
[130.] EXPERIMENTUM CV.
Page: 238 (224)
[131.] EXPERIMENTUM CVI.
Page: 239 (225)
[132.] EXPERIMENTUM CVII.
Page: 240 (226)
[133.] EXPERIMENTUM CVIII.
Page: 243 (229)
[134.] EXPERIMENTUM CIX. DE FABRICA VERSORIORUM.
Page: 243 (229)
[135.] CAPUT QUARTUM.
Page: 249 (235)
[136.] EXPERIMENTUM CX.
Page: 249 (235)
[137.] EXPERIMENTUM CXI.
Page: 250 (236)
[138.] EXPERIMENTUM CXII.
Page: 251 (237)
[139.] EXPERIMENTUM CXIII.
Page: 252 (238)
[140.] EXPERIMENTUM CXIV.
Page: 253 (239)
[141.] EXPERIMENTUM CXV.
Page: 254 (240)
[142.] EXPERIMENTUM CXVI.
Page: 255 (241)
[143.] EXPERIMENTUM CXVII.
Page: 256 (242)
[144.] EXPERIMENTUM CXVIII.
Page: 256 (242)
[145.] EXPERIMENTUM CXIX.
Page: 257 (243)
[146.] EXPERIMENTUM CXX.
Page: 257 (243)
[147.] EXPERIMENTUM CXXI.
Page: 258 (244)
[148.] EXPERIMENTUM CXXII.
Page: 259 (245)
[149.] EXPERIMENTUM CXXIII.
Page: 260 (246)
[150.] EXPERIMENTUM CXXIV.
Page: 260 (246)
< >
page |< < (192) of 795 > >|
    <echo version="1.0RC">
      <text xml:lang="la" type="free">
        <div xml:id="echoid-div122" type="section" level="1" n="122">
          <p>
            <s xml:id="echoid-s4466" xml:space="preserve">
              <pb o="192" file="0206" n="206" rhead="DISSERTATIO"/>
            nor pendere diſcrepantiam inter obſervatas Inclinationes in iiſdem
              <lb/>
            Terræ locis ſummam, etiamſi parvum temporis intervallum inter-
              <lb/>
            ceſſerit, uti conſtare poteſt ex obſervationibus Noëllii & </s>
            <s xml:id="echoid-s4467" xml:space="preserve">Poundii,
              <lb/>
            inferius commemorandis: </s>
            <s xml:id="echoid-s4468" xml:space="preserve">Acus alias breviores & </s>
            <s xml:id="echoid-s4469" xml:space="preserve">tenuiores quoque
              <lb/>
            conſtruxi, quarum una exhibetur R R, cujus axis æneus erat P P,
              <lb/>
            brachia P R, P R; </s>
            <s xml:id="echoid-s4470" xml:space="preserve">hujuſmodi acus præ gravitate ſuperabat Chalybis
              <lb/>
            rigiditatem, ita ut R R, non manſerit linea abſolute recta, poſt-
              <lb/>
            quam axis P P capitulis impoſitus fuerat, ſed parum in formam ar-
              <lb/>
            cus incurvabatur, minus tamen, quam ut ope oculi, vel regulæ ob-
              <lb/>
            ſervari potuerit; </s>
            <s xml:id="echoid-s4471" xml:space="preserve">centrum gravitatis igitur parum deſcendit infra
              <lb/>
            axin, vel centrum motus P P. </s>
            <s xml:id="echoid-s4472" xml:space="preserve">cum hujuſmodi acus in obliquo ad
              <lb/>
            horizontem poſita ſitu non valebat ad menſurandam Magnetis Incli-
              <lb/>
            nationem, corpuſculum cupreum Q, vix eminens ſupra acum, ta-
              <lb/>
            men ſatis ponderoſum, impoſitum fuit tum medio acûs, tum axeos,
              <lb/>
            quo centrum gravitatis adſcendens, redibat ad medium axeos, & </s>
            <s xml:id="echoid-s4473" xml:space="preserve">
              <lb/>
            acus utcunque perficiebatur, nontamen exactiſſime, pro omni ſi-
              <lb/>
            tu, nam incurvatio maxima eſt poſita acu in ſitu horizontali, & </s>
            <s xml:id="echoid-s4474" xml:space="preserve">
              <lb/>
            minor in quocunque ſitu obliquo, minima in perpendiculari, ut
              <lb/>
            ex natura vectis facile intelligitur, huic defectui tamen obviam ivi-
              <lb/>
            mus annulis æneis tenuiſſimis ſupra brachia P R mobilibus, locan-
              <lb/>
            diſque in variis punctis: </s>
            <s xml:id="echoid-s4475" xml:space="preserve">multo autem melius eſt virgas denſas rigi-
              <lb/>
            daſque ſumſiſſe, quæ non inflectantur: </s>
            <s xml:id="echoid-s4476" xml:space="preserve">His præmiſſis ad experimen-
              <lb/>
            ta cum deſcriptis capta acubus pergamus.</s>
            <s xml:id="echoid-s4477" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div123" type="section" level="1" n="123">
          <head xml:id="echoid-head132" xml:space="preserve">EXPERIMENTUM XCIX.</head>
          <p>
            <s xml:id="echoid-s4478" xml:space="preserve">Tabula AAA. </s>
            <s xml:id="echoid-s4479" xml:space="preserve">primum ita locata fuit, ut ſtaret in eodem plano
              <lb/>
            verticali, quod Verſorium horizontale & </s>
            <s xml:id="echoid-s4480" xml:space="preserve">vulgare determinabat;
              <lb/>
            </s>
            <s xml:id="echoid-s4481" xml:space="preserve">tum Acus 4 pedum Inclinatoria ducta fuit ſupra polum Boreum Ma-
              <lb/>
            gnetis armati, ſecundum totam ſuam longitudinem, poſtquam vi
              <lb/>
            Magnetis imprægnata fuit, impoſita eſt excipulis M N in ſitu hori-
              <lb/>
            zontali; </s>
            <s xml:id="echoid-s4482" xml:space="preserve">illico cuſpis Boream ſpectans deprimebatur, atque ultra
              <lb/>
            perpendiculum D C eundo, rediit ſurſum, oſcillationes plurimas
              <lb/>
            penduli inſtar abſolvens, donec tandem quievit, tum vero inclina-
              <lb/>
            vit ſub horizonte Anno 1728. </s>
            <s xml:id="echoid-s4483" xml:space="preserve">Martii 23. </s>
            <s xml:id="echoid-s4484" xml:space="preserve">Trajecti Batavorum gra-
              <lb/>
            dibus 67. </s>
            <s xml:id="echoid-s4485" xml:space="preserve">Sæpius autem ex hoc ſitu turbata, ut obſervarem an con-
              <lb/>
            ſtans foret Inclinatio, Acus rediit ad gradus 67, aliquando </s>
          </p>
        </div>
      </text>
    </echo>
Impressum