Forschungsprojekt Karstquelle Blaubeuren: Als sich der Blautopf grün färbte
Forschungsprojekt Karstquelle BlaubeurenNur wenige haben es bemerkt: Der sonst in schönstem Blau schimmernde Blautopf war in der Nacht grün. Das steckt dahinter.
Um Mitternacht wurde der Blautopf durch Färbeversuche grün.⇥
Andreas Scheurer
Im Jahr 2012 war der Blautopf durch einen Färbeversuch schon einmal grün, und zwar kräftiger als beim jüngsten Experiment.⇥
Striebel Joachim
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