Jürgen Renn, since 1994 director at the Max Planck Institute for the History of Science in Berlin (Department 1), is one of Topoi’s principal investigators and spokesman of Area E (together with Ernst Osterkamp). His research focuses on: structural changes in systems of knowledge in the natural sciences; comparative studies of the emergence and development of mechanical thinking; epistemic history of architecture; history of early modern science; history of relativity and quantum physics; development of electronic research infrastructures. Prof. Renn is Honorary Professor for History of Science at Humboldt-Universität zu Berlin and Freie Universität Berlin. He is also Adjunct Professor for Philosophy and Physics at Boston University and member of various national and international Scientific Advisory and Editorial Boards. Since 2005 he is a member of the Deutsche Akademie der Naturforscher, Leopoldina.