|  | 
         
          | Description: 
             Microscopic flakes suspended 
            in fluid reflect a single, intense color, but when an electric field 
            is applied, the flakes move out of alignment, scattering the wavelengths. 
            This makes them appear dull. |   
          | Source: 
             University of Rochester |   
          | Story:  Flipping 
            flakes change color TRN November 14, 2001
 |   
          | TRN Categories: 
             Materials Science and Engineering |   
          | Form: 
             Still |  |