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
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          <head xml:id="echoid-head353" xml:space="preserve">PARS ALTERA.
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          DE
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          MAGNITUDINE TERRÆ
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          SECUNDUM MENSURAM ULTIMAM
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          SNELLII
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          ET
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          NOSTRAM.</head>
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            <emph style="sc">Problema</emph>
          I.</head>
          <head xml:id="echoid-head355" style="it" xml:space="preserve">Tab. XIV. fig. 2. Triangulum i e a connectens Leydam,
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          Douſæ arcem, locumque inter hanc & Voor-
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          ſchooten aſſumtum.</head>
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          Latus a e accuratiſſime ſupra glaciem menſuratum fuit catenâ, \\ qui labor ter repetitus eſt, ut eo tutius confidi poſſet, fuit \\ vero perticarum # 475, 0, 0
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          Angulus i a e obſervatus # 54 gr. 36`.
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          Angulus i e a obſervatus # 89 gr. 31`.
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          Angulus a i e obſervatus eſt # 35 gr. 53`.
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          Ex quibus datis per regulas Trigonometriæ inventum eſt latus i e diſtantia Leidæ a Douſiana arce # 660, 5, 7.
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          Et latus i a # 810, 3, 6.
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          </note>
        </div>
        <div xml:id="echoid-div294" type="section" level="1" n="294">
          <head xml:id="echoid-head356" xml:space="preserve">
            <emph style="sc">Problema</emph>
          II.</head>
          <head xml:id="echoid-head357" style="it" xml:space="preserve">Triangulum a e m, nectens Douſæ arcem, pagum Soeterwoudam,
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          locumque inter illam & Voor ſchoten aſſumtum
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          eundem ac in Probl. I.</head>
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          Eſt obſervatus anguluse a m # 61 gr. </note>
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Impressum