Have you noticed that strange whistling sound on Hahn-Meitner Campus at Wannsee?
When I told the PhD students of the research group for inorganic and solid state chemistry at the Technische Universität Berlin that I will be part of the Summer Students Programme at the Helmholtz-Zentrum Berlin, one of them had something interesting to tell me. He advised me to pay attention to a whistling sound on Campus Wannsee and he also revealed to me where to find the source of the sound.
So on my fourth day at Wannsee I decided to find that thing that made me listen attentively to its music.
At lunch break I got out of the office, passed by Lise Meitner in the little backyard and left building “C”.
Having the directions in mind the PhD student gave me I walked my way. Following the whistle that is like a sound a bird makes when it sings I turned left and kept on wandering. At some point I was not sure if I was taking the right path but the noise becoming clearer meant that I was just getting closer. On my journey to the origin of the sound I passed by the chemicals and waste disposal and it did not last long I came to a dead end. Or not?
Trees and bushes were the only objects in front of me. But inbetween, there was a little sandy path. So I decided to look behind the trees. There I found a little green field. And there, the source of the sound seemed to be there, too. That thing that makes the noise that reminds one of a squeaking swing.
That thing looks like three giant bells. One after another these bells emit a high tone. I stood there pretty surprised and took several pictures of it. 30 minutes passed and my lunch break was over. I decided to turn back to the office.
Now wondering what these bells are made for I asked a few people. Some did not know what they are for, some say it has something to do with radar and others say it is just art.
In the following photo you can see what I found but I recommend you to take that journey yourself. The PhD students direction was:
“When you enter Campus Wannsee keep walking straight on and you will find the source of the sound.”.
And maybe you will find out what these bells are really for?