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-s1360" xml:space="preserve">
              <pb o="59" file="0073" n="73" rhead="DE MAGNETE."/>
            tum æque magnam attrahendi vim exerciturum Magnetem in alium,
              <lb/>
            ac ſi ambo ſibi libere abſque ullo obſtaculo, in æquali diſtantia ob-
              <lb/>
            verſi fuiſſent: </s>
            <s xml:id="echoid-s1361" xml:space="preserve">Si vero eandem vim attrahendi habeat uterque poſi-
              <lb/>
            to intermedio quolibet obſtaculo, vel nullo, non dabuntur Efflu-
              <lb/>
            via, ſed ab alia cauſa Magnetum effectus pendebunt; </s>
            <s xml:id="echoid-s1362" xml:space="preserve">ad ipſa igitur
              <lb/>
            Experimenta accedamus & </s>
            <s xml:id="echoid-s1363" xml:space="preserve">exploremus, utrum corpora ſolidiſſima
              <lb/>
            inter binos Magnetes poſita, vires attrahentes tollant, imminuant,
              <lb/>
            mutent, an eas integras relinquant.</s>
            <s xml:id="echoid-s1364" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1365" xml:space="preserve">1. </s>
            <s xml:id="echoid-s1366" xml:space="preserve">Suſpenſus fuit ex Libra Magnes H, Tab 1. </s>
            <s xml:id="echoid-s1367" xml:space="preserve">fig. </s>
            <s xml:id="echoid-s1368" xml:space="preserve">2. </s>
            <s xml:id="echoid-s1369" xml:space="preserve">infra quem
              <lb/>
            ad diſtantiam 1 {9/12} pollicis poſita Terrella NO fuit, atque explorata
              <lb/>
            quantitas virium attrahentium: </s>
            <s xml:id="echoid-s1370" xml:space="preserve">deinde inter utrumque Magnetem
              <lb/>
            interpoſita eſt moles plumbea, admodum lata, ſed craſſitiei 1 {9/12} pol-
              <lb/>
            licis, vires autem attrahentes Magnetum permanſerunt eædem ac
              <lb/>
            ante, interpolatis vicibus remotum eſt plumbum, atque denuo in-
              <lb/>
            terpoſitum, manente ſemper Attractione omnino eadem.</s>
            <s xml:id="echoid-s1371" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1372" xml:space="preserve">2. </s>
            <s xml:id="echoid-s1373" xml:space="preserve">Loco Plumbi ſumebatur parallelopipedum Stanni, craſſi-
              <lb/>
            tiei quoque 1 {9/12} pollic: </s>
            <s xml:id="echoid-s1374" xml:space="preserve">quo inter eoſdem Magnetes interpoſito, nul-
              <lb/>
            lum virium decrementum, incrementum, aut differentia obſervata
              <lb/>
            fuit: </s>
            <s xml:id="echoid-s1375" xml:space="preserve">plurimi orbes ſtannei, majorem craſſitiem facientes non mu-
              <lb/>
            tare potuerunt, vel tantillum vires attrahentes, ſed eas reliquerunt
              <lb/>
            eaſdem ac ſi in vacuo ſe liberrime reſpexiſſent Magnetes.</s>
            <s xml:id="echoid-s1376" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1377" xml:space="preserve">3. </s>
            <s xml:id="echoid-s1378" xml:space="preserve">Tum maſſa Cuprea unum pollicem craſſa, lata plurimos,
              <lb/>
            intermedia, nihil quoque mutationis Attractioni induxit, ſive adeſ-
              <lb/>
            ſet ſive abeſſet.</s>
            <s xml:id="echoid-s1379" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1380" xml:space="preserve">4. </s>
            <s xml:id="echoid-s1381" xml:space="preserve">Nec nummi Argentei, nec Aurei interpoſiti vel tantillum
              <lb/>
            differentiæ viribus attractricibus attulerunt.</s>
            <s xml:id="echoid-s1382" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1383" xml:space="preserve">5. </s>
            <s xml:id="echoid-s1384" xml:space="preserve">Ne autem Metallorum tenuitas argueretur cauſa, quæ abſ-
              <lb/>
            que impedimento vires Magneticas tranſmiſiſſet, parallelopipedum
              <lb/>
            electum fuit Plumbeum, unum pedem craſſum, & </s>
            <s xml:id="echoid-s1385" xml:space="preserve">generoſior Ma-
              <lb/>
            gnes, quam qui prioribus Experimentis inſerviit, in menſa fuit po-
              <lb/>
            ſitus, ut alterum H, ſuſpenſum ex fune majoribus deprimeret viri-
              <lb/>
            bus, nihilominus obſervabatur eadem vis attrahens tam ſepoſito
              <lb/>
            quam applicato Magneti Plumbo.</s>
            <s xml:id="echoid-s1386" xml:space="preserve"/>
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