Heraclitus reflected that you cannot step twice into the same river. The topic of changeability and fluidity, so vividly described in the ancient metaphor, has its scientific roots in technical and natural sciences.
https://upwr.edu.pl/en/news/panta_rhei_everything_flows-144.html
On 10 April 2010 on the way to commemoration ceremony of the 70 th anniversary of the Katyn massacre the President of the Republic of Poland Mr Lech Kaczynski, the First Lady Mrs Maria Kaczynska, members of the Polish delegation and crew lost their lives.
https://upwr.edu.pl/en/news/condolences-45.html
Marta Konikiewicz, a doctoral student at the Department of Systematics and Ecology of Invertebrates, have become a laureate of Ludwik Hirszfeld scholarship for outstanding achievements in the area of biological and medical sciences of the Student Scholarship Program.
https://upwr.edu.pl/en/news/wroclaw_scholarship_for_research_on_inclusion-174.html