|  | 
         
          | Description: 
             An array of transparent 
            transistors, visible as a green tint, covers the top three-quarters 
            of this penny. |   
          | Source: 
             Oregon State University |   
          | Story:  See-through 
            circuits closer TRN June 18/25, 2003
 |   
          | TRN Categories: 
             Integrated Circuits; Materials 
            Science and Engineering |   
          | Form: 
             Still |  |