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

Page concordance

< >
Scan Original
331 39
332 40
333 41
334 42
335 43
336 44
337 45
338 46
339 47
340 48
341 49
342 50
343 51
344 52
345 53
346 54
347 55
348 56
349 57
350 58
351 59
352 60
353 61
354 62
355 63
356 64
357 65
358 66
359 67
360 68
< >
page |< < (77) of 624 > >|
    <echo version="1.0RC">
      <text xml:lang="de" type="free">
        <div xml:id="echoid-div191" type="section" level="1" n="145">
          <p>
            <s xml:id="echoid-s5022" xml:space="preserve">
              <pb o="77" file="369" n="369"/>
            haben. </s>
            <s xml:id="echoid-s5023" xml:space="preserve">Wir ſagen: </s>
            <s xml:id="echoid-s5024" xml:space="preserve">das iſt
              <emph style="sp">Anſteckung</emph>
            und glaubten früher
              <lb/>
            durch dieſes Wort den Vorgang erklärt; </s>
            <s xml:id="echoid-s5025" xml:space="preserve">die Wiſſenſchaft aber
              <lb/>
            geſtand gerne ein, daß dies Wort ſelber noch der Erklärung
              <lb/>
            bedurfte und ſie iſt ſchließlich durch die Erkenntnis gefunden
              <lb/>
            worden, daß das anſteckende Mittel aus winzigen Pflanzen
              <lb/>
            (Bakterien), die ſich ſchnell ins Ungeheuerliche vermehren, be-
              <lb/>
            ſteht. </s>
            <s xml:id="echoid-s5026" xml:space="preserve">— Will man ſich nun beim Magnetismus mit einem
              <lb/>
              <emph style="sp">Wort</emph>
            begnügen, nun ſo mag man, wenn man will, ſagen, es
              <lb/>
            gehe im erſten Moment, wo der Magnet das Eiſen berührt,
              <lb/>
            ein Prozeß der Anſteckung vor, wodurch das Eiſen gleichfalls
              <lb/>
            magnetiſch wird. </s>
            <s xml:id="echoid-s5027" xml:space="preserve">Durch Streichen wird die Anſteckung noch
              <lb/>
            vollſtändiger.</s>
            <s xml:id="echoid-s5028" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s5029" xml:space="preserve">Eine weitere Beobachtung zeigt uns indeſſen, daß wir
              <lb/>
            dem Geheimnis des Magnetismus noch etwas näher auf die
              <lb/>
            Spur zu kommen imſtande ſind.</s>
            <s xml:id="echoid-s5030" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s5031" xml:space="preserve">Man verſuche es einmal, von dem Nordpol-Ende einer
              <lb/>
            Nadel ein Stückchen abzubrechen, und man wird ſehen, daß
              <lb/>
            das Stückchen auch ein vollſtändiger Magnet iſt, der am Bruch
              <lb/>
            einen Südpol hat. </s>
            <s xml:id="echoid-s5032" xml:space="preserve">Ja, man kann eine Magnetnadel in tauſend
              <lb/>
            kleine Stücke zerbrechen und jedes Stückchen wird ein voll-
              <lb/>
            ſtändiger Magnet ſein, und zwar: </s>
            <s xml:id="echoid-s5033" xml:space="preserve">mit Nordpol, Südpol und
              <lb/>
            unmagnetiſcher Mitte.</s>
            <s xml:id="echoid-s5034" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s5035" xml:space="preserve">Man muß ſich alſo denken, daß das Eiſen der Stricknadel
              <lb/>
            nur aus einzelnen Atomen beſteht, und muß ſich zur Erklärung
              <lb/>
            der magnetiſchen Erſcheinungen vorſtellen,
              <emph style="sp">daß</emph>
            in
              <emph style="sp">jedem
                <lb/>
              Atom für ſich eine Trennung des Magnetismus vor
                <lb/>
              ſich geht</emph>
            , ſo daß aus jedem Atom ein kleiner Magnet mit
              <lb/>
            Nord- und mit Südpol entſteht.</s>
            <s xml:id="echoid-s5036" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s5037" xml:space="preserve">So ſonderbar dieſe Vorſtellung auch ſcheinen mag, ſo
              <lb/>
            außerordentliche Wichtigkeit erlangt ſie doch, wenn man bedenkt,
              <lb/>
            daß ſie ausreicht, alle Rätſel der magnetiſchen Erſcheinungen,
              <lb/>
            die wir angeführt haben, zu löſen. </s>
            <s xml:id="echoid-s5038" xml:space="preserve">Und daß dies der Fall
              <lb/>
            iſt, wollen wir ſogleich zeigen.</s>
            <s xml:id="echoid-s5039" xml:space="preserve"/>
          </p>
        </div>
      </text>
    </echo>
Impressum