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Measurement of the gearing of the astronomical clock of Strasbourg Cathedral

 

Restoration of a Planetarium (University of Regensburg)

 

Restoration of a Dutch longcase clock

(Deutsches Schiffahrtsmuseum, Bremerhaven)

 

Manufacturing of meridian and horizon rings for historical globes in private collections

 

Construction of a measuring device for the determination of star positions of the Dresden Arabic globe (Mathematisch-Physikalischer Salon) and execution of a copy on behalf of the Institute for the History of Arabic-Islamic Science, Frankfurt/M.

 

Reconstruction of the celestial globe of as-Sufi

(Institute for the History of Arabic-Islamic Science, Frankfurt/M.)

 

Reconstructions of clocks described by the astronomer Taqi al-Din

(Institute for the History of Arabic-Islamic Science, Frankfurt/M.)

 

Conceptual design of an exhibition of the celestial globe of Johannes Stoeffler

(Württembergisches Landesmuseum, Stuttgart)

 

Compilation of a catalogue raisonné, conceptual design and execution of an exhibition on the clock- and watchmaker family Hager

(Herzog August Bibliothek, Wolfenbüttel)

 

Conceptual design and execution of the exhibition

„New Worlds: Wilhelm Olbers and the Natural Sciences around 1800“

(Staats- und Universitätsbibliothek Hamburg/Braunschweigisches Landesmuseum)

 

Reconstruction of a mariner’s astrolabe

(Deutsches Schiffahrtsmuseum, Bremerhaven)

 

Reconstruction of the moon globe of Tobias Mayer

(Tobias-Mayer-Association, Marbach/N.)

 

Reconstruction of a Tychonic planetarium by Raimarus Ursus

(Dithmarscher Landesmuseum, Meldorf)

 

Copy of a mariner’s astrolabe for Nicolàs de Hilster

(Castricum/Netherlands)

 

Scientific consultant (restoration of the astronomical clock of Lund’s Cathedral)

 

Restoration of a precision pendulum clock by Wilhelm Bröcking

(Deutsches Schiffahrtsmuseum, Bremerhaven)

 

Restoration of a precision pendulum clock by Adolph August Kittel (Altonaer Museum, Hamburg-Altona)