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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          <pb o="414" file="0428" n="428" rhead="DISSERTATIO"/>
        </div>
        <div xml:id="echoid-div328" type="section" level="1" n="328">
          <head xml:id="echoid-head424" xml:space="preserve">
            <emph style="sc">Problema</emph>
          XXXVI.</head>
          <head xml:id="echoid-head425" style="it" xml:space="preserve">Triangulum R S F. Dordracum, Gouda, Rotterodamum.</head>
          <note position="right" xml:space="preserve">
            <lb/>
          Per Problema XVI datur R S diſtantia inter Gou- \\ dam & Dordracum # 5918, 9, 7.
            <lb/>
          Ex obſervatis autem angulus S R F # 54 gr. 0`;.
            <lb/>
          Angulus R S F # 48 gr. 5`;.
            <lb/>
          Unde reliquus R F S datur # 77 gr. 55`;.
            <lb/>
          Quare per doctrinam Triangulorum datur S F di- \\ ſtantia inter Goudam & Rotterodamum # 4899, 7.
            <lb/>
          Et R F diſtantia inter Dordracum & Rotterodamum # 4504, 2.
            <lb/>
          </note>
          <p>
            <s xml:id="echoid-s9362" xml:space="preserve">Deprehenditur diſtantia inter Goudam & </s>
            <s xml:id="echoid-s9363" xml:space="preserve">Rotterodamum 9 per-
              <lb/>
            ticis longior, quam in Problemate XIX quod arguit errorem, ſed
              <lb/>
            exiguum, irrepſiſſe in calculum, quod ſacile evenire potuit quia
              <lb/>
            angulorum minuta ſecunda non accurate ope Inſtrumentorum ca-
              <lb/>
            pi poſſunt.</s>
            <s xml:id="echoid-s9364" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div329" type="section" level="1" n="329">
          <head xml:id="echoid-head426" xml:space="preserve">
            <emph style="sc">Problema</emph>
          XXXVII.</head>
          <head xml:id="echoid-head427" style="it" xml:space="preserve">Triangulum R T F, Dordracum, Willemſtadium,
            <lb/>
          Rotterodamum.</head>
          <note position="right" xml:space="preserve">
            <lb/>
          Per Problema XXXVI datur R F diſtantia inter \\ Dordracum & Rotterodamum # 4504, 2.
            <lb/>
          Et ex obſervatis angulus F R T # 86 gr 19`;.
            <lb/>
          Angulus R T F # 41 gr. 10`;.
            <lb/>
          Unde reliquus R F T datur # 52 gr. 31`;.
            <lb/>
          Atque inde per doctrinam Triangulorum dabitur \\ R T diſtantia inter Dordracum & Willemſtadium # 5429, 8, 7.
            <lb/>
          Tum T F diſtantia inter Willemſtadium & Rottero- \\ damum # 6828, 5, 4.
            <lb/>
          </note>
        </div>
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