Last week I was at CERN in Geneva, where I was photographing the making of a documentary about Paul Dirac and the Dirac equation. My dear collegue Marcel acted as one of Dirac's students. Paul Dirac formulated this equation in 1928 and thus predicted the existence of anti-matter! Ever since, anti-matter has become a topic of interest for both scientists as well as science-fiction writers :-). Read more on Paul Dirac and his equation or on CERN (where the Web was born).