Note:

The usage of 3D functions within this demonstration requires Adobe Reader version 8.0 or higher !

If you don't have this version, you can download the actual reader version here.

--> start demonstration now     
      (to manipulate the 3D model hold the left and/or right mouse button while
       moving the mouse into the 3D window, use the buttons to start animations
       or change the view or visualization type)