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     Dr.(Phys.)Dipl.-Ing.Ralf-Udo Hartmann

Installation Details

Since 1955 the Documenta, an international exhibition of modern and contemporary art, has been held regularly in Kassel. The Documenta now takes place every 5 years and the next Documenta 14 will be in 10.6.- 17.9.2017! As a result of the Documenta 6 (1977), Kassel became the first town in the world to have been illuminated by LASER-beams at night (Laserscape, by artist Horst H. Baumann).

Startpoint The Zwehrenturm from 1330 ist a remain of Kassel's medieval defensive wall. Temporary it contained an observatory. Today the start point of the LaserScape
 
First Laser Installation 1979

The light and communication designer Horst H. Baumann arranged the installation 'LASERSCAPE KASSEL - the first permanent laser sculpture worldwide' - in 1979.
 
Radiator of the Laser-Refrigeration-System
 
 

In 1558 the first German observatory was built in Kassel, followed in 1604 by the Ottoneum, the first permanent German theater building, and in 1779 Europe's first public museum, named the Museum Fridericianum after its founder. By the end of the 19th century the museum held one of the largest collections in the world of watches and clocks.
 
Museums include: Schloss Wilhelmshöhe (Antiquities Collection and Old Masters:Albrecht Dürer, Rubens, Rembrandt, Frans Hals, Anthony van Dyck); Museum für Sepulkralkultur (the only German Museum for Sepulchral Culture); New Gallery (Tischbein Family, Joseph Beuys); Hessisches Landesmuseum (with a world-famous wallpaper collection).
 
Test-Beam
 
    
 

This laser project was recreated by Horst H. Baumann in 2007 with a comprehensive support by LaserAnimation SOLLINGER. The company provided a special developed laser technology for this event.
Herkules 1
 
 
    Herkules
 
The Hercules Monument
 
is an important landmark in the German city of Kassel.
 
The monument is located in Bad Wilhelmshöhe, on the Eastern ridge of the Habichtswald (7350 m distance from the Zwehrenturm) . It was built in an artificial dell of the Karlsberg (526m above sea level) on the most western and at the same time highest location (515 m) of the line of sight Schloss Wilhelmshöhe - Hercules.
Hercules
The complete structure (Octagon & Cascades) are made of Tuff that was exhausted from stone pits nearby. This soft material has the advantage of a good workability but weathers quickly, particularly by frost-related erosion. This rapid weathering process has been a structural issue for the statue in its 300 years of existence. In late 2005 a complete restructuring process of the entire monument, including the Hercules statue, was initiated. Completed in 2009
 
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