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="365" file="0379" n="379" rhead="DE MAGNITUDINE TERRÆ."/>
          <note position="right" xml:space="preserve">
            <lb/>
          Perro in triangulo a e m datur baſis a e ut ante # 326. 4. 3.
            <lb/>
          Angulus m a e ex obſervatione # 61 gr. 38 ſcr.
            <lb/>
          Et angulus m e a # 81 gr, 29 ſcr.
            <lb/>
          Unde dabitur latus a m # 537. 9. 0.
            <lb/>
          Et latus m e # 478. 5. 8.
            <lb/>
          </note>
          <p>
            <s xml:id="echoid-s8890" xml:space="preserve">Quamobrem cum ex antecedentibus jam nobis cognita ſint crura
              <lb/>
            anguli i a m, & </s>
            <s xml:id="echoid-s8891" xml:space="preserve">angulus i a m 129 gr. </s>
            <s xml:id="echoid-s8892" xml:space="preserve">22 ſcr. </s>
            <s xml:id="echoid-s8893" xml:space="preserve">conflatus e duo-
              <lb/>
            bus i a e & </s>
            <s xml:id="echoid-s8894" xml:space="preserve">e a m, dabitur inde quoque baſis i m 1092. </s>
            <s xml:id="echoid-s8895" xml:space="preserve">3. </s>
            <s xml:id="echoid-s8896" xml:space="preserve">3.</s>
            <s xml:id="echoid-s8897" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s8898" xml:space="preserve">Atque ideo intervallum inter Leidenſis curiæ turrim & </s>
            <s xml:id="echoid-s8899" xml:space="preserve">turrim
              <lb/>
            pagi Soeterwoudæ interjectum erit digitorum 1092 33, vel decem-
              <lb/>
            pedarum 1092, pedum 3, digitorum 3. </s>
            <s xml:id="echoid-s8900" xml:space="preserve">Quo in calculo digitos
              <lb/>
            quoque admiſi & </s>
            <s xml:id="echoid-s8901" xml:space="preserve">pedes, non quod ita accurate ad unius digiti aut
              <lb/>
            pedis menſuram hanc diſtantiam explicatam exiſtimem, ſed ne er-
              <lb/>
            ror aliquis, leviculus initio, deinceps ulterius calculo procedente
              <lb/>
            in ipſas decempedas proſerpat, ut harum ſaltem menſura & </s>
            <s xml:id="echoid-s8902" xml:space="preserve">nume-
              <lb/>
            rus nobis integer & </s>
            <s xml:id="echoid-s8903" xml:space="preserve">a calculi vitio illibatus conſtet. </s>
            <s xml:id="echoid-s8904" xml:space="preserve">Nunc itaque
              <lb/>
            ad cætera cum bono Deo nos conferamus, hac baie totius operis
              <lb/>
            inter Leidam & </s>
            <s xml:id="echoid-s8905" xml:space="preserve">Soeterwoudam ita accurate & </s>
            <s xml:id="echoid-s8906" xml:space="preserve">bene juſte à nobis
              <lb/>
            definita.</s>
            <s xml:id="echoid-s8907" xml:space="preserve"/>
          </p>
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        <div xml:id="echoid-div250" type="section" level="1" n="250">
          <head xml:id="echoid-head274" xml:space="preserve">CAPUT VII.</head>
          <head xml:id="echoid-head275" xml:space="preserve">Diſtantia inter Lugdunum Batavorum & Hagam Comitis
            <lb/>
          definita.</head>
          <p>
            <s xml:id="echoid-s8908" xml:space="preserve">Tandem aliquando pedem è camporum planitie extulimus, & </s>
            <s xml:id="echoid-s8909" xml:space="preserve">
              <lb/>
            in turrium faſtigia conſcendimus: </s>
            <s xml:id="echoid-s8910" xml:space="preserve">Verum ut urbium longius
              <lb/>
            diſſitarum intervalla ſecure & </s>
            <s xml:id="echoid-s8911" xml:space="preserve">cum fide explicare queamus, inde jam in
              <lb/>
            vicinas quaſque & </s>
            <s xml:id="echoid-s8912" xml:space="preserve">operi noſtro opportunas turres transvolabimus. </s>
            <s xml:id="echoid-s8913" xml:space="preserve">Et
              <lb/>
            cum inter Hagam atque Leidam opportuna ſit duarum turrium ad
              <lb/>
            collineandum ſtatio, quaſi in medio itinere transverſim poſitarum,
              <lb/>
            in pagis Voorſchoten & </s>
            <s xml:id="echoid-s8914" xml:space="preserve">Waſſenaar, unde inclytæ Waſſenariæ gen.
              <lb/>
            </s>
            <s xml:id="echoid-s8915" xml:space="preserve">tis nomen. </s>
            <s xml:id="echoid-s8916" xml:space="preserve">Harum intervalla primum cum Leida, deinde ipſarum
              <lb/>
            inter ipſas quoque explicabo.</s>
            <s xml:id="echoid-s8917" xml:space="preserve"/>
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