258
Boris. 👀
(feddit.de)
A laid back community for good news, pictures and general discussions among people living in Europe.
Other European communities
Other casual communities:
Language communities
Cities
Countries
Weird “periodic table”.
If you zoom in, you can read what those abbreviations mean and it's all different math expressions. So I guess it's something else that just reminds people of a periodic table. Also the word "maths" can be read on the poster, so another indication that this is not a periodic table...