The object you will see is a DWF file produced from a DWG file and a
texture. It shows the capacity of FreeWheel from Autodesk to display a
3D model in a browser without any plugin. You can see it full screen.
If you want better qualty, you can download the DWF file and display
it in Autodesk viewer, DWGTrueView.
http://www.triangleimpossible.com/2010/09/17/the-impossible-triangle-in-your-browser /