====== Cross Section ======

<tabbox Why is it interesting?> 

<tabbox Layman> 

<note tip>
Explanations in this section should contain no formulas, but instead colloquial things like you would hear them during a coffee break or at a cocktail party.
</note>
  
<tabbox Student> 

   * http://edu.itp.phys.ethz.ch/hs12/qft1/Chapter09.pdf
 
<tabbox Researcher> 

<note tip>
The motto in this section is: //the higher the level of abstraction, the better//.
</note>

--> Common Question 1#

 
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--> Common Question 2#

 
<--
  
<tabbox Examples> 

--> Example1#

 
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--> Example2:#

 
<--
  
<tabbox History> 

</tabbox>