Another way of making observations

Graphic - cern
http://upload.wikimedia.org/wikipedia/commons/3/36/CERN_-_widok_z_lotu_ptaka.jpg
Sometimes making ‘observations’ is a very elaborate process, involving large scale collaboration...much time and much concrete. This is an aerial view of the CERN site just outside Geneva. The large circle shows the line of the Large Electron Positron accelerator (LEP) tunnel, 27 km in circumference.