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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            <s xml:id="echoid-s565" xml:space="preserve">
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            licum, quem uti in Experimento I, II, III. </s>
            <s xml:id="echoid-s566" xml:space="preserve">impoſui TT menſæ,
              <lb/>
            cui inſiſtebat immobilis, & </s>
            <s xml:id="echoid-s567" xml:space="preserve">ex bilance ſuspendi Magnetem parallele-
              <lb/>
            pipedum, qui Experimento IV. </s>
            <s xml:id="echoid-s568" xml:space="preserve">inſerviit, fueratque longitudinis 2 {3/4}
              <lb/>
            poll. </s>
            <s xml:id="echoid-s569" xml:space="preserve">latitudinis 2 {1/2} poll. </s>
            <s xml:id="echoid-s570" xml:space="preserve">altitudinis 1 {1/2} poll. </s>
            <s xml:id="echoid-s571" xml:space="preserve">tum vero vires attractio-
              <lb/>
            nis fuerunt obſervatæ ſequentes.</s>
            <s xml:id="echoid-s572" xml:space="preserve"/>
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          Diſtantiæ \\ pollic. # Lin. # Grana \\ Medica.
            <lb/>
          19 # 0 # 0
            <lb/>
          18 # 0 # 1
            <lb/>
          17 # 4 # 1 {1/2} # idem fuit pondus in variis locis.
            <lb/>
          13 # 0 # 2 # idem pondus in variis diſtantiis.
            <lb/>
          9 # 9 # 2 {1/2}
            <lb/>
          # 10 # 122
            <lb/>
          # 8 # 136
            <lb/>
          # 7 # 164
            <lb/>
          # 6 # 170
            <lb/>
          # 5 # 187
            <lb/>
          # 4 # 209
            <lb/>
          # 3 # 218
            <lb/>
          # 2 # 241
            <lb/>
          # 1 # 273
            <lb/>
          # 0 # 340
            <lb/>
          </note>
          <p>
            <s xml:id="echoid-s573" xml:space="preserve">Ex his rurſus patet nullam dari proportionem virium in diverſis
              <lb/>
            diſtantiis, nam Actiones horum Magnetum non fuerunt in ratione
              <lb/>
            ſimplici inverſa diſtantiarum a ſe, quippe cum diſtabant 1 linea,
              <lb/>
            actio erat æqualis 273 granis, cum 2 lineis aberant a ſe, Attractio
              <lb/>
            erat æqualis 241 granis.</s>
            <s xml:id="echoid-s574" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s575" xml:space="preserve">Si vero eſſent actiones in inverſa ratione diſtantiarum, tum ad di-
              <lb/>
            ſtantiam 2 linearum, pondus, attractioni æquipollens, requiſitum
              <lb/>
            fuiſſet 136 {1/2} gran. </s>
            <s xml:id="echoid-s576" xml:space="preserve">nempe dimidium 273 granorum.</s>
            <s xml:id="echoid-s577" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s578" xml:space="preserve">Sunt autem hæ vires in proportione ad ſe invicem uti 1 ad 1 {32/273}.
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            </s>
            <s xml:id="echoid-s579" xml:space="preserve">quod ſi vires in eadem proportione manerent, decreſcendo in majoribus
              <lb/>
            diſtantiis, tum ad diſtantiam 4 linearum eſſent æquales 215 {218/305} granis. </s>
            <s xml:id="echoid-s580" xml:space="preserve">Sed
              <lb/>
            Experimentum eas exhibet æquales 309 granis, adeoque hic calculus non
              <lb/>
            reſpondet obſervationi: </s>
            <s xml:id="echoid-s581" xml:space="preserve">demonſtratu facile foret eodem modo </s>
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