View of the ring-laser lab

Links
- https://www.pi.uni-bonn.de/en/news/inauguration-ring-laser-gyroscopes/uni-vl-stellmer-201223-1.jpg/image_view_fullscreen
- https://www.pi.uni-bonn.de/en/news/inauguration-ring-laser-gyroscopes/uni-vl-stellmer-201223-1.jpg/@@download/image/Uni-VL-Stellmer-201223-1.jpg