Bernstein, Aaron, Naturwissenschaftliche Volksbücher, Bd. 1/5, 1897

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        <div xml:id="echoid-div160" type="section" level="1" n="121">
          <p>
            <s xml:id="echoid-s3990" xml:space="preserve">
              <pb o="8" file="300" n="300"/>
            um eigentümlich ſind. </s>
            <s xml:id="echoid-s3991" xml:space="preserve">— Ja, in der Lebensthätigkeit der Pflanze
              <lb/>
            und noch mehr in der des Tieres, herrſcht eine außerordentlich
              <lb/>
            eigene Art von Anziehung, die durchaus anders iſt als alle
              <lb/>
            anderen bisherigen. </s>
            <s xml:id="echoid-s3992" xml:space="preserve">All’ dieſe wollen wir in leichten Zügen
              <lb/>
            einmal vorführen, um dann zu der Hauptfrage des Geheim-
              <lb/>
            niſſes zu kommen, ob es nur eine Anziehungskraft in der Natur
              <lb/>
            giebt, die ſich nur unter verſchiedenen Umſtänden verſchieden
              <lb/>
            äußert, oder ob es wirklich verſchiedene geſonderte Anziehungs-
              <lb/>
            kräfte giebt, von denen ſich uns einige zeigen: </s>
            <s xml:id="echoid-s3993" xml:space="preserve">oder endlich,
              <lb/>
            ob alle nur herſtammen von einer uns völlig unbekannten
              <lb/>
            Naturkraft, von welcher die Anziehung überhaupt nur eine be-
              <lb/>
            ſondere Erſcheinung iſt.</s>
            <s xml:id="echoid-s3994" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s3995" xml:space="preserve">Und für dieſe Aufgabe nehmen wir für diesmal das In-
              <lb/>
            tereſſe und das Nachdenken unſerer Leſer in Anſpruch.</s>
            <s xml:id="echoid-s3996" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div161" type="section" level="1" n="122">
          <head xml:id="echoid-head141" xml:space="preserve">
            <emph style="bf">IV. Von den kleinſten Teilchen und den unſicht-</emph>
            <lb/>
            <emph style="bf">baren Zwiſchenräumen.</emph>
          </head>
          <p>
            <s xml:id="echoid-s3997" xml:space="preserve">Es giebt zahlreiche Beweiſe dafür, daß all’ die feſten
              <lb/>
            Dinge, die unſerem Auge wie ununterbrochene Maſſen erſcheinen,
              <lb/>
            welche gar keine leeren Zwiſchenräume in ſich haben, dennoch
              <lb/>
            voll von ſolchen Zwiſchenräumen ſein müſſen.</s>
            <s xml:id="echoid-s3998" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s3999" xml:space="preserve">Einen ſcharfen Stahlſtift kann man durch Preſſen oder
              <lb/>
            Schlagen in ein Stück Eiſen treiben. </s>
            <s xml:id="echoid-s4000" xml:space="preserve">Der Stahlſtift macht ein
              <lb/>
            Loch im Eiſen. </s>
            <s xml:id="echoid-s4001" xml:space="preserve">Da aber nirgends das Eiſen zu finden iſt,
              <lb/>
            das vorher die Stelle des Loches ausgefüllt hat, ſo leuchtet es
              <lb/>
            jedem ein, daß der Stahlſtift nur das Eiſen verdrängt hat, und
              <lb/>
            daß das Loch nur dadurch entſtanden iſt, daß durch das Ein-
              <lb/>
            dringen des Stahlſtiftes das Eiſen rings um das Loch dichter
              <lb/>
            geworden iſt.</s>
            <s xml:id="echoid-s4002" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s4003" xml:space="preserve">Wäre Eiſen eine Maſſe, die vollkommen dicht zu-
              <lb/>
            ſammenhängt und ein ununterbrochenes Stück iſt, ſo </s>
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