...cloud chamber track....

....a cold but sunny morning gave a good view over Wiesbaden and parts of the area Rheingau (with Rüdesheim as its best know tourist attraction)...
..there was cloud chamber track over a larger part of  the bend of the river Rhine....   the weather was stable today, so it was a good  final of the working week...

perhaps a good sound for the weekend, enjoy: 

https://www.youtube.com/watch?v=vNc5o9TU0t0