Jan Turczynowicz, University of Warsaw, Faculty of Physics, Warsaw, Poland; Fenix Science Club, Warsaw, Poland, Radost Waszkiewicz, Polish Academy of Science, Institute of Physics, Warsaw, Poland; Fenix Sciece Club, Warsaw, Poland, Jonasz Słomka, ETH Zurich, Institute of Environmental Engineering, Department of Civil, Environmental and Geomatic Engineering, Zurich, Switzerland and Maciej Lisicki, University of Warsaw, Faculty of Physics, Warsaw, Poland