Einstein, Albert. 'Die Plancksche Theorie der Strahlung und die Theorie der spezifischen Waerme'. Annalen der Physik, 22 (1907)

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        <p class="indent">
          <pb/>
        </p>
        <p class="indent"/>
        <p class="indent"> Ich benutze die Beobachtungsresultate von H. F. Weber,
          <br/>
        die ich den Tabellen von Landolt und Börnstein entnahm
          <br/>
        (vgl. nachstehende Tabelle). Für
          <span class="cmmi-12">T </span>
        = 331
          <span class="cmmi-12">, </span>
        3 ist
          <span class="cmmi-12">c </span>
        = 1
          <span class="cmmi-12">, </span>
        838;
          <br/>
        hieraus folgt nach der angegebenen Methode
          <span class="cmmi-12">
            <img src="http://foxridge.mpiwg-berlin.mpg.de/permanent/einstein/annalen/Einst_Planc_de_1907/fulltext/img/cmmi12-15.png" alt="c" class="12x-x-15"/>
          </span>
        = 11
          <span class="cmmi-12">, </span>
        0
          <span class="cmmi-12">
            <img src="http://foxridge.mpiwg-berlin.mpg.de/permanent/einstein/annalen/Einst_Planc_de_1907/fulltext/img/cmmi12-16.png" alt="m" class="cmmi-12x-x-16" align="middle"/>
          . </span>
          <br/>
        Unter Zugrundelegung dieses Wertes sind die in der dritten
          <br/>
        Spalte der Tabelle nach der Formel
          <span class="cmmi-12">x </span>
        = (
          <span class="cmmi-12">T L/
            <img src="http://foxridge.mpiwg-berlin.mpg.de/permanent/einstein/annalen/Einst_Planc_de_1907/fulltext/img/cmmi12-c.png" alt="b" class="cmmi-12x-x-c" align="middle"/>
            <img src="http://foxridge.mpiwg-berlin.mpg.de/permanent/einstein/annalen/Einst_Planc_de_1907/fulltext/img/cmmi12-15.png" alt="c" class="12x-x-15"/>
          </span>
        ) berechnet
          <br/>
        (
          <span class="cmmi-12">
            <img src="http://foxridge.mpiwg-berlin.mpg.de/permanent/einstein/annalen/Einst_Planc_de_1907/fulltext/img/cmmi12-c.png" alt="b" class="cmmi-12x-x-c" align="middle"/>
          </span>
        = 4
          <span class="cmmi-12">, </span>
        86
          <span class="cmmi-12">. </span>
        10
          <sup>
            <span class="cmsy-8">-</span>
            <span class="cmr-8">11</span>
          </sup>
        )
          <span class="cmmi-12">.</span>
        </p>
        <div class="center">
          <p class="noindent"/>
          <div class="tabular">
            <table class="tabular" cellspacing="0" cellpadding="0" rules="groups" frame="border" id="TBL-3-">
              <colgroup id="TBL-3-1g">
                <col id="TBL-3-1"/>
              </colgroup>
              <colgroup id="TBL-3-2g">
                <col id="TBL-3-2"/>
              </colgroup>
              <colgroup id="TBL-3-3g">
                <col id="TBL-3-3"/>
              </colgroup>
              <tr class="hline">
                <td>
                  <hr/>
                </td>
                <td>
                  <hr/>
                </td>
                <td>
                  <hr/>
                </td>
              </tr>
              <tr class="hline">
                <td>
                  <hr/>
                </td>
                <td>
                  <hr/>
                </td>
                <td>
                  <hr/>
                </td>
              </tr>
              <tr valign="baseline" id="TBL-3-1-">
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-3-1-1" class="td00">
                  <span class="cmti-12">T</span>
                </td>
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-3-1-2" class="td00">
                  <span class="cmti-12">c</span>
                </td>
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-3-1-3" class="td01">
                  <span class="cmti-12">x</span>
                </td>
              </tr>
              <tr class="hline">
                <td>
                  <hr/>
                </td>
                <td>
                  <hr/>
                </td>
                <td>
                  <hr/>
                </td>
              </tr>
              <tr class="hline">
                <td>
                  <hr/>
                </td>
                <td>
                  <hr/>
                </td>
                <td>
                  <hr/>
                </td>
              </tr>
              <tr class="vspace" style="font-size:5.16667pt">
                <td> </td>
                <td> </td>
                <td> </td>
              </tr>
              <tr valign="baseline" id="TBL-3-2-">
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-3-2-1" class="td00"> </td>
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-3-2-2" class="td00"> </td>
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-3-2-3" class="td01"> </td>
              </tr>
              <tr valign="baseline" id="TBL-3-3-">
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-3-3-1" class="td00"> </td>
              </tr>
              <tr>
                <td colspan="3"/>
              </tr>
              <tr valign="baseline" id="TBL-03-3-">
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-3-1" class="td00"> </td>
              </tr>
              <tr valign="baseline" id="TBL-03-4-">
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-4-1" class="td00"> </td>
              </tr>
              <tr valign="baseline" id="TBL-03-5-">
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-5-1" class="td00"> 222,4 </td>
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-5-2" class="td00">0,762 </td>
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-5-3" class="td01">0,1679</td>
              </tr>
              <tr valign="baseline" id="TBL-03-6-">
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-6-1" class="td00"> 262,4 </td>
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-6-2" class="td00">1,146 </td>
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-6-3" class="td01">0,1980</td>
              </tr>
              <tr valign="baseline" id="TBL-03-7-">
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-7-1" class="td00"> 283,7 </td>
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-7-2" class="td00">1,354 </td>
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-7-3" class="td01">0,2141</td>
              </tr>
              <tr valign="baseline" id="TBL-03-8-">
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-8-1" class="td00"> 306,4 </td>
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-8-2" class="td00">1,582 </td>
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-8-3" class="td01">0,2312</td>
              </tr>
              <tr valign="baseline" id="TBL-03-9-">
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-9-1" class="td00"> 331,3 </td>
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-9-2" class="td00">1,838 </td>
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-9-3" class="td01">0,2500</td>
              </tr>
              <tr valign="baseline" id="TBL-03-10-">
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-10-1" class="td00"> 358,5 </td>
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-10-2" class="td00">2,118 </td>
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-10-3" class="td01">0,2705</td>
              </tr>
              <tr valign="baseline" id="TBL-03-11-">
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-11-1" class="td00"> 413,0 </td>
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-11-2" class="td00">2,661 </td>
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-11-3" class="td01">0,3117</td>
              </tr>
              <tr valign="baseline" id="TBL-03-12-">
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-12-1" class="td00"> 479,2 </td>
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-12-2" class="td00">3,280 </td>
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-12-3" class="td01">0,3615</td>
              </tr>
              <tr valign="baseline" id="TBL-03-13-">
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-13-1" class="td00"> 520,0 </td>
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-13-2" class="td00">3,631 </td>
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-13-3" class="td01">0,3924</td>
              </tr>
              <tr valign="baseline" id="TBL-03-14-">
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-14-1" class="td00"> 879,7 </td>
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-14-2" class="td00">5,290 </td>
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-14-3" class="td01">9,6638</td>
              </tr>
              <tr valign="baseline" id="TBL-03-15-">
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-15-1" class="td00"> 1079,7 </td>
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-15-2" class="td00">5,387 </td>
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-15-3" class="td01">0,8147</td>
              </tr>
              <tr valign="baseline" id="TBL-03-16-">
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-16-1" class="td00"> 1258,0 </td>
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-16-2" class="td00">5,507 </td>
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-16-3" class="td01">0,9493</td>
              </tr>
              <tr valign="baseline" id="TBL-03-17-">
                <td align="center" style="white-space:nowrap; text-align:center;" id="TBL-03-17-1" class="td00"> </td>
              </tr>
            </table>
          </div>
        </div>
        <p class="indent"> Die Punkte, deren Abszissen diese Werte von
          <span class="cmmi-12">x</span>
        , deren
          <br/>
        Ordinaten die in der Tabelle angegebenen, aus Beobachtungen
          <br/>
        Webers ermittelten Werte von
          <span class="cmmi-12">c </span>
        sind, sollen auf der oben
          <br/>
        dargestellten x , c-Kurve iegen. Wir haben diese Punkte
          <br/>
        -- mit Ringen bezeichnet -- in die obige Figur eingetragen;
          <br/>
        sie liegen tatsächlich nahezu auf der Kurve. Wir haben also
          <br/>
        anzunehmen, daß die elementaren Träger der Wärme beim
          <br/>
        Diamanten nahezu monochromatische Gebilde </p>
        <p class="indent"> Es ist also nach der Theorie zu erwarten, daß der
          <br/>
        Diamant bei
          <span class="cmmi-12">
            <img src="http://foxridge.mpiwg-berlin.mpg.de/permanent/einstein/annalen/Einst_Planc_de_1907/fulltext/img/cmmi12-15.png" alt="c" class="12x-x-15"/>
          </span>
        = 11
          <span class="cmmi-12">
            <img src="http://foxridge.mpiwg-berlin.mpg.de/permanent/einstein/annalen/Einst_Planc_de_1907/fulltext/img/cmmi12-16.png" alt="m" class="cmmi-12x-x-16" align="middle"/>
          </span>
        ein Absorptionsmaximum </p>
        <p class="indent"> Bern, November </p>
        <div class="center">
          <p class="noindent"/>
          <p class="noindent">(Eingegangen 9. November 1906.)</p>
        </div>
        <div class="center">
          <p class="noindent"/>
          <p class="noindent">----------</p>
        </div>
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