German audio-visual artist Rainer Tautenhahn makes pictures from sound waves. He can transform any sound into a optic signal.
Sound is a powerful device. It's used in war to disorientate the enemy, and in cities to hold back protesters or disperse "loitering" teenagers. Plus, it's "media friendly." So is sonic weaponry better than a gun?
The quinquennial art exhibition Documenta provides creative impetus and surprising encounters in Athens. Greeks and international guests have discovered a new side of the city.
Known as Sting's trusty side-kick, guitarist Dominic Miller is also a successful solo artist. His latest album, "Silent Light," is about truth and protest - and was released on a German label. DW met him in Cologne.
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