1959 born in Bremen.

 

1979-82 apprenticeship, qualification as a watch- and clockmaker.

 

1983-1990 student at Tübingen and Hamburg University (History of Science, History of Art, General History).

 

1992 PhD (thesis on the astronomical clock of Starsbourg Cathedral, awarded with the Philipp-Matthäus-Hahn-Prize in 1993).

 

1992-1994 assistant curator (Württembergisches Landesmuseum, Stuttgart).

1996 assistant curator at the cabinet of engravings of the Kunsthalle Bremen.

 

1996-2002 scientific assistant at the Institute for the History of Science, Mathematics and Technology at Hamburg University.

 

2001 Habilitation at the Institute for the History of Science at Hamburg University , appointment as a lecturer.

2002 master craftsman's diploma (Federal Technical College for Clock- and Watchmakers in Karlstein/Austria).

 

2004-2006 research grant (Project „The Art of Navigation: Development, Contents and Organization of Navigational Teaching in Germany to 1871“.

 

2006 Curator, Maritime Collection (Deutsches Museum, Munich).

 

2009 Visiting professor (Technical University, Berlin).

Since 2010 University lecturer (Technical University, Berlin),
2010-2012 research associate at the German Maritime Museum, Bremerhaven (Research project "Towards the 'German Chronometer': The Introduction of Precision Timekeeping in the German Mercantile Marine and Imperial Navy before the First World War".