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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        <div xml:id="echoid-div329" type="section" level="1" n="329">
          <pb o="415" file="0429" n="429" rhead="DE MAGNITUDINE TERRÆ."/>
        </div>
        <div xml:id="echoid-div330" type="section" level="1" n="330">
          <head xml:id="echoid-head428" xml:space="preserve">
            <emph style="sc">Problema</emph>
          XXXVIII.</head>
          <head xml:id="echoid-head429" style="it" xml:space="preserve">Triangulum R T V. Dordracum, Willemſtadium, Breda.</head>
          <note position="right" xml:space="preserve">
            <lb/>
          Per Problema XXXVII datur R T diſtantia inter Dor- \\ dracum & Willemſtadium # 5429, 8, 7.
            <lb/>
          Ex obſervatis autem angulus T R V # 66 gr. 13`;.
            <lb/>
          Angulus R T V # 67 gr. 59`;.
            <lb/>
          Angulus R V T # 45 gr. 48`;.
            <lb/>
          Unde datur T V diſtantia inter Willemſtadium & Bre- \\ dam # 6930, 7, 8.
            <lb/>
          Et R V diſtantia inter Dordracum & Bredam # 7038, 6.
            <lb/>
          Quam in Problemate XXXV invenimus # 7034.
            <lb/>
          Adeoque parum diſcrepant.
            <lb/>
          </note>
        </div>
        <div xml:id="echoid-div331" type="section" level="1" n="331">
          <head xml:id="echoid-head430" xml:space="preserve">
            <emph style="sc">Problema</emph>
          XXXIX.</head>
          <head xml:id="echoid-head431" style="it" xml:space="preserve">Triangulum T V Q Willemſtadium, Breda,
            <lb/>
          Bergaad Somum.</head>
          <note position="right" xml:space="preserve">
            <lb/>
          In Problemate XXXVIII datur V T diſtantia inter \\ Bredam & Willemſtadium # 6930, 7, 8.
            <lb/>
          Obſervatur angulus V T Q # 89 gr. 23`;.
            <lb/>
          Angulus T V Q # 43 gr. 23`;.
            <lb/>
          Angulus V Q T # 47 gr. 14`;.
            <lb/>
          Hinc invenitur T Q diſtantia inter Willemſtadium \\ & Bergam # 6484, 7, 1.
            <lb/>
          Et Q V diſtantia Bredæ & Bergæ # 9440, 3, 2.
            <lb/>
          </note>
        </div>
        <div xml:id="echoid-div332" type="section" level="1" n="332">
          <head xml:id="echoid-head432" xml:space="preserve">
            <emph style="sc">Problema</emph>
          XL.</head>
          <head xml:id="echoid-head433" style="it" xml:space="preserve">Triangulum R V Q Dordracum, Breda, Berga
            <lb/>
          ad Somum.</head>
          <note position="right" xml:space="preserve">
            <lb/>
          Per Problema XXXV, datur V R diſtantia inter Dor- \\ dracum & Bredam # 7034.
            <lb/>
          Per Problema XXXIX datur V Q diſtantia inter Bre-
            <lb/>
          </note>
        </div>
      </text>
    </echo>
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