Whoever closes his eyes to the past is blind to the present.
Richard von Weizsäcker

Thursday 6 August 2020

Who can give this information?

During my research diving course always new questions. I would like to clarify their post here these questions. I hope that maybe someone has a hint for me.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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