Present and Historical Dimensions of the Radiation Concept

The historiographers of the Old Testament knew about the predominant role of light They categorized Hght as a vital factor for the development of Hfe on our planet after the creation of the Earth, water and the atmosphere. Even today, re- 

Oxidative Cieansing of the Atmosphere Photosynthesis Phototropism Photomorphogenesis 

Most of the photo-initiated processes in the atmosphere are radical reactions. However, the hydroxyl radical ( OH) is of special significance for the chemistry of the atmosphere (Ehhalt, 1999). This reactive species is mainly responsible for the photooxidation of trace organic chemicals in the troposphere and hence for the oxidative cleansing of the atmosphere (Fabian, 1989). It is nature s atmospheric detergent (Comes, 1994, Ravishankara, et al. 1998). Furthermore, several years ago it was well established that the interaction of UV/VIS radiation and environmental pollution seems to be responsible for the dramatic forest decline that has been observed, for example in the higher areas of the Black Forest or the Ore Mountains in Germany (Schenck, 1985). 

Heisenberg, W. 1901-1976 Uncertainty principle and quantum mechanics Mason (1961) 

Jablonski, A. 1898-1980 Mechanisms of fluorescence and phosphorescence,/aWonski diagram (1933) Nickel (1998) 

---