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            This is a file from the  Wikimedia Commons. Information from its  description page there is shown below.  Commons is a freely licensed media file repository.  You can help. 
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           This image was created with  POV-Ray. | 
          
         
         
        Summary 
        A simple torus fading out to a wireframe structure. Rendered using  POV-Ray
         Licensing 
        
         
          | Public domainPublic domainfalsefalse | 
         
        
        
         
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          I, the copyright holder of this work, release this work into the  public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.Public domainPublic domainfalsefalse 
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       File usage
       
        The following pages on Schools Wikipedia link to this image (list may be incomplete):
        
        
       
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