John in action ... http://www.inet.haw-hamburg.de/gallery/summer-school-renne10/101_0047.JPG/view http://www.inet.haw-hamburg.de/gallery/summer-school-renne10/101_0047.JPG/@@download/image/101_0047.JPG John in action ... Click to view full-size image… Size: 898.0 KB