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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[201.] EXPERIMENTUM XIII.
Page: 321 (307)
[202.] EXPERIMENTUM XIV.
Page: 322 (308)
[203.] EXPERIMENTUM XV.
Page: 322 (308)
[204.] EXPERIMENTUM XVI.
Page: 322 (308)
[205.] EXPERIMENTUM XVII.
Page: 323 (309)
[206.] EXPERIMENTUM XVIII.
Page: 323 (309)
[207.] CAPUT QUINTUM. De Tubis ubivis æque latis, ſed vario modo inflexis.
Page: 324 (310)
[208.] EXPERIMENTUM II.
Page: 324 (310)
[209.] EXPERIMENTUM III.
Page: 324 (310)
[210.] EXPERIMENTUM IV.
Page: 325 (311)
[211.] EXPERIMENTUM V.
Page: 326 (312)
[212.] EXPERIMENTUM VI.
Page: 328 (314)
[213.] EXPERIMENTUM VII.
Page: 328 (314)
[214.] EXPERIMENTUM VIII.
Page: 329 (315)
[215.] EXPERIMENTUM IX.
Page: 329 (315)
[216.] EXPERIMENTUM X.
Page: 329 (315)
[217.] EXPERIMENTUM XI.
Page: 330 (316)
[218.] EXPERIMENTUM XII.
Page: 330 (316)
[219.] EXPERIMENTUM XIII.
Page: 330 (316)
[220.] CAPUT SEXTUM. De Tubis vario modo inflexis & inæqualis diametri. EXPERIMENTUM I.
Page: 332 (318)
[221.] EXPERIMENTUM II.
Page: 333 (319)
[222.] EXPERIMENTUM III.
Page: 333 (319)
[223.] EXPERIMENTUM IV.
Page: 333 (319)
[224.] EXPERIMENTUM V.
Page: 334 (320)
[225.] EXPERIMENTUM VI.
Page: 334 (320)
[226.] EXPERIMENTUM VII.
Page: 335 (321)
[227.] EXPERIMENTUM VIII.
Page: 335 (321)
[228.] CAPUT SEPTIMUM. De Tuborum Capillarium in Vacuo examinatorum phænomenis. EXPERIMENTUM I.
Page: 336 (322)
[229.] EXPERIMENTUM II.
Page: 336 (322)
[230.] EXPERIMENTUM III.
Page: 337 (323)
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            ut nunquam Minuti ſpatio quieſcat, ſed perpetuo motu & </s>
            <s xml:id="echoid-s4508" xml:space="preserve">oſcilla-
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            tionibus agitetur, non ab aëris motu pendentibus, verum a ſuâ vir-
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            tute Magnetica.</s>
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        <div xml:id="echoid-div124" type="section" level="1" n="124">
          <head xml:id="echoid-head133" xml:space="preserve">EXPERIMENTUM. C.</head>
          <p>
            <s xml:id="echoid-s4510" xml:space="preserve">Acus Inclinatoriæ diverſæ longitudinis etiam varia Inclinatione
              <lb/>
            aguntur eodem tempore & </s>
            <s xml:id="echoid-s4511" xml:space="preserve">in eodem loco, poſitæ in Meridiano
              <lb/>
            Magnetico.</s>
            <s xml:id="echoid-s4512" xml:space="preserve"/>
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          <p>
            <s xml:id="echoid-s4513" xml:space="preserve">Memoravi Acum noſtram 48 pollices longam inclinaſſe gradibus
              <lb/>
            67 plerumque; </s>
            <s xml:id="echoid-s4514" xml:space="preserve">alia eſt mihi Acus, vid. </s>
            <s xml:id="echoid-s4515" xml:space="preserve">Tab. </s>
            <s xml:id="echoid-s4516" xml:space="preserve">8. </s>
            <s xml:id="echoid-s4517" xml:space="preserve">R R Cylindrica,
              <lb/>
            utrimque tamen in cuſpidem deſinens, 42 pollices longa, ſupra
              <lb/>
            cujus axem PP exiguus proſtat ſtylus, conſervans centrum gravita-
              <lb/>
            tis aliquomodo in axe, quia acûs ambæ extremitates R R ſua gra-
              <lb/>
            vitate parum perpendent; </s>
            <s xml:id="echoid-s4518" xml:space="preserve">hæc Acus ſupra eundem polum Magnetis
              <lb/>
            ducta, excipuliſque N M impoſita, inclinavit 72 gradibus plerum-
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            que, differentia enim diverſarum Inclinationum intra gradum manſit.
              <lb/>
            </s>
            <s xml:id="echoid-s4519" xml:space="preserve">tum tertiam Acum duos pedes longam, eidem Magnetis polo affri-
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            ctam, obſervavi inclinaſſe 60 gradibus plerumque, nam nunc 59,
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            nunc 61, nunc gradum intermedium aut aliquod Minutum indica-
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            bat.</s>
            <s xml:id="echoid-s4520" xml:space="preserve"/>
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            <s xml:id="echoid-s4521" xml:space="preserve">Ejuſmodi eventus acuum variæ longitudinis adnotavit etiam Whi-
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            ſtonus, qui in uſum vocans Acum unius pedis, Londini Inclinatio-
              <lb/>
            nem 73°, 45? </s>
            <s xml:id="echoid-s4522" xml:space="preserve">deprehendit, quam ope alterius 4 pedes longæ 75°,
              <lb/>
            10? </s>
            <s xml:id="echoid-s4523" xml:space="preserve">obſervavit: </s>
            <s xml:id="echoid-s4524" xml:space="preserve">imo Grahamus Acu unius pedis uſus Inclinationem
              <lb/>
            74, vel 75 grad. </s>
            <s xml:id="echoid-s4525" xml:space="preserve">adnotavit, aut aliquot Minutorum inter hos am-
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            bos intermediorum.</s>
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            <s xml:id="echoid-s4527" xml:space="preserve">Præcedenti Experimento XCIX, indicante variam Inclinatio-
              <lb/>
            nemAcus eodem die, & </s>
            <s xml:id="echoid-s4528" xml:space="preserve">hoc centeſimo diverſarum Acuum etiam diver-
              <lb/>
            fam Inclinationem eſſe oſtendente, liquet, antiquorum obſervationes
              <lb/>
            circa Inclinationem non eſſe magni uſus, quia ad has anomalias
              <lb/>
            non accurate attenderunt, nec longitudinem ſuarum Acuum adno-
              <lb/>
            taverunt. </s>
            <s xml:id="echoid-s4529" xml:space="preserve">Londini Anno 1576 Normannus Inclinationem ponit 71°,
              <lb/>
            50?</s>
            <s xml:id="echoid-s4530" xml:space="preserve">. Gilbertus ſua ætate eam ſtatuit 72 grad. </s>
            <s xml:id="echoid-s4531" xml:space="preserve">Ridleyus Anno 1613
              <lb/>
            inter 72 & </s>
            <s xml:id="echoid-s4532" xml:space="preserve">73 grad. </s>
            <s xml:id="echoid-s4533" xml:space="preserve">obſervavit in Magnetic Motions C. </s>
            <s xml:id="echoid-s4534" xml:space="preserve">35, 39, 40.
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            </s>
            <s xml:id="echoid-s4535" xml:space="preserve">Bondius Anno 1676 grad. </s>
            <s xml:id="echoid-s4536" xml:space="preserve">73°, 30?</s>
            <s xml:id="echoid-s4537" xml:space="preserve">, Whiſtonus Anno 1720 grad.</s>
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