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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          <p>
            <s xml:id="echoid-s873" xml:space="preserve">
              <pb o="37" file="0051" n="51" rhead="DE MAGNETE."/>
            tem, & </s>
            <s xml:id="echoid-s874" xml:space="preserve">Magnes reciproce tantopere ad ferrum, hinc ut manerent a
              <lb/>
            ſe ſejuncta hæc corpora; </s>
            <s xml:id="echoid-s875" xml:space="preserve">pondus majus imponendum erat Lanci ad-
              <lb/>
            nexæ oppoſito brachio I ibræ illius, ex quo Magnes pendebat, eo
              <lb/>
            attollebatur Magnes, tum accurate tantundem ponderi imponendum
              <lb/>
            erat ferro, a quo deprimebatur, atque a Magnete avellebatur; </s>
            <s xml:id="echoid-s876" xml:space="preserve">quibus
              <lb/>
            peractis æquilibrium obſervabatur in utraque libra: </s>
            <s xml:id="echoid-s877" xml:space="preserve">Hinc igitur ma-
              <lb/>
            nifeſto liquet, Actionem Magnetis in ferrum eſſe æqualem Reactioni
              <lb/>
            ferri ad Magnetem: </s>
            <s xml:id="echoid-s878" xml:space="preserve">idem evinci poteſt alio etiam modo, ſi nem-
              <lb/>
            pe tum ferrum, tum Magnetem parvis inmittamus cymbulis, in
              <lb/>
            quibus, Aqua labro amplo immiſſa, natent, accedunt enim ambæ
              <lb/>
            cymbulæ ad ſe æquali cum impetu, & </s>
            <s xml:id="echoid-s879" xml:space="preserve">in intermedia via ſibi eunt
              <lb/>
            obviam: </s>
            <s xml:id="echoid-s880" xml:space="preserve">Verum ad alia tranſeamus experimenta, in quibus opera-
              <lb/>
            tiones Magnetis in ferrum determinare calculo conati fuimus.</s>
            <s xml:id="echoid-s881" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div24" type="section" level="1" n="24">
          <head xml:id="echoid-head32" xml:space="preserve">EXPERIMENTUM XVI.</head>
          <p>
            <s xml:id="echoid-s882" xml:space="preserve">Sumſi maſſam ferream, quod erat parallelepipedum, baſeos 224
              <lb/>
            linearum pollicis quadratarum, longitudinis 5 {1/2} pollic. </s>
            <s xml:id="echoid-s883" xml:space="preserve">rhenol. </s>
            <s xml:id="echoid-s884" xml:space="preserve">hoc nun-
              <lb/>
            quam Magnetem attigerat, tabulæ id impoſui, ut immobiliter ſtaret:
              <lb/>
            </s>
            <s xml:id="echoid-s885" xml:space="preserve">tum ſuspendi Magnetem, etiam formæ parallelepipedæ, qui Expe-
              <lb/>
            rimento quarto inſervierat, ex fune annexo Libræ, ita ut axis,
              <lb/>
            utrosque polos connectens, eſſet in horizontem perpendicularis, tran-
              <lb/>
            ſiretque per axem ferri: </s>
            <s xml:id="echoid-s886" xml:space="preserve">reductum Magnetem ad æquilibrium, pri-
              <lb/>
            usquam tentamina fierent, demiſi ad varias a ferro diſtantias ſucces-
              <lb/>
            ſive, quemadmodum in Experimento II. </s>
            <s xml:id="echoid-s887" xml:space="preserve">& </s>
            <s xml:id="echoid-s888" xml:space="preserve">notavi pondus alteri
              <lb/>
            imponendum lanci, ad æquilibrium reſtituendum, quod æquipolle-
              <lb/>
            bat ſemper ejus viribus attractricibus: </s>
            <s xml:id="echoid-s889" xml:space="preserve">eſſectum attractionis ex appo-
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            ſita conſpicere licet tabula.</s>
            <s xml:id="echoid-s890" xml:space="preserve"/>
          </p>
          <note position="right" xml:space="preserve">
            <lb/>
          Diſtantiæ \\ pollic. # lin # Attractio. \\ gran. Medicor.
            <lb/>
          3 # 7 # 1
            <lb/>
          2 # 11 # 1 {1/2}
            <lb/>
          2 # 6 # 2
            <lb/>
          1 # 7 # 6
            <lb/>
          1 # 4 {1/2} # 10
            <lb/>
          # 11 # 14
            <lb/>
          </note>
        </div>
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